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	<id>https://drorbn.net/api.php?action=feedcontributions&amp;feedformat=atom&amp;user=Wangy306</id>
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	<updated>2026-05-05T15:25:05Z</updated>
	<subtitle>User contributions</subtitle>
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	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/homework_13_assignment_solutions&amp;diff=16163</id>
		<title>1617-257/homework 13 assignment solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/homework_13_assignment_solutions&amp;diff=16163"/>
		<updated>2017-03-09T06:02:44Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: Created page with &amp;quot;==Doing== &amp;#039;&amp;#039;&amp;#039;Solve&amp;#039;&amp;#039;&amp;#039; &amp;#039;&amp;#039;all&amp;#039;&amp;#039; the problems in sections 25-26, but submit only your solutions of problems 4 and 8 in section 25 and problems 5 and 6 in section 26. In addition,...&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;==Doing==&lt;br /&gt;
&#039;&#039;&#039;Solve&#039;&#039;&#039; &#039;&#039;all&#039;&#039; the problems in sections 25-26, but submit only your solutions of problems 4 and 8 in section 25 and problems 5 and 6 in section 26. In addition, solve the following problem, though submit only your solutions of parts d and e:&lt;br /&gt;
&lt;br /&gt;
&#039;&#039;&#039;Problem A.&#039;&#039;&#039; Let &amp;lt;math&amp;gt;\alpha\colon\{(u,v)\in{\mathbb R}^2\colon u^2+v^2\leq 1\}\to{\mathbb R}^3&amp;lt;/math&amp;gt; be given by &amp;lt;math&amp;gt;\alpha(u,v)=\left(u-v,\,u+v,\,2(u^2+v^2)\right)&amp;lt;/math&amp;gt;. Let &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt; be the image of &amp;lt;math&amp;gt;\alpha&amp;lt;/math&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
a. Describe &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
b. Show that &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt; is a manifold.&lt;br /&gt;
&lt;br /&gt;
c. Find the boundary &amp;lt;math&amp;gt;\partial M&amp;lt;/math&amp;gt; of &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;u&amp;gt;d&amp;lt;/u&amp;gt;. Find the volume &amp;lt;math&amp;gt;V(M)&amp;lt;/math&amp;gt; of &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;u&amp;gt;e&amp;lt;/u&amp;gt;. Find &amp;lt;math&amp;gt;\int_MzdV&amp;lt;/math&amp;gt; (where &amp;lt;math&amp;gt;z&amp;lt;/math&amp;gt; denotes the third coordinate of &amp;lt;math&amp;gt;{\mathbb R}^3&amp;lt;/math&amp;gt;).&lt;br /&gt;
&lt;br /&gt;
==Student Solutions==&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/homework_12_assignment_solutions&amp;diff=16162</id>
		<title>1617-257/homework 12 assignment solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/homework_12_assignment_solutions&amp;diff=16162"/>
		<updated>2017-03-09T06:00:23Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: /* Student Solutions */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;==Doing==&lt;br /&gt;
&#039;&#039;&#039;Solve&#039;&#039;&#039; &#039;&#039;all&#039;&#039; the problems in sections 23-24, but submit only your solutions of problems 3 and 6 in section 23 and problems 3 and 5 in section 24.&lt;br /&gt;
&lt;br /&gt;
==Student Solutions==&lt;br /&gt;
&lt;br /&gt;
[[media:1617-257_HW_12-solution-wangy306.pdf|Student 1]]&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=File:1617-257_HW_12-solution-wangy306.pdf&amp;diff=16161</id>
		<title>File:1617-257 HW 12-solution-wangy306.pdf</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=File:1617-257_HW_12-solution-wangy306.pdf&amp;diff=16161"/>
		<updated>2017-03-09T05:59:02Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/homework_12_assignment_solutions&amp;diff=16160</id>
		<title>1617-257/homework 12 assignment solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/homework_12_assignment_solutions&amp;diff=16160"/>
		<updated>2017-03-09T05:58:08Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: /* Doing */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;==Doing==&lt;br /&gt;
&#039;&#039;&#039;Solve&#039;&#039;&#039; &#039;&#039;all&#039;&#039; the problems in sections 23-24, but submit only your solutions of problems 3 and 6 in section 23 and problems 3 and 5 in section 24.&lt;br /&gt;
&lt;br /&gt;
==Student Solutions==&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/homework_12_assignment_solutions&amp;diff=16159</id>
		<title>1617-257/homework 12 assignment solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/homework_12_assignment_solutions&amp;diff=16159"/>
		<updated>2017-03-09T05:56:53Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: Created page with &amp;quot;==Doing== &amp;#039;&amp;#039;&amp;#039;Solve&amp;#039;&amp;#039;&amp;#039; &amp;#039;&amp;#039;all&amp;#039;&amp;#039; the problems in sections 23-24, but submit only your solutions of problems 3 and 6 in section 23 and problems 3 and 5 in section 24.&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;==Doing==&lt;br /&gt;
&#039;&#039;&#039;Solve&#039;&#039;&#039; &#039;&#039;all&#039;&#039; the problems in sections 23-24, but submit only your solutions of problems 3 and 6 in section 23 and problems 3 and 5 in section 24.&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/Navigation&amp;diff=16158</id>
		<title>1617-257/Navigation</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/Navigation&amp;diff=16158"/>
		<updated>2017-03-09T05:55:56Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;noinclude&amp;gt;Back to [[1617-257]].&amp;lt;br/&amp;gt;&amp;lt;/noinclude&amp;gt;&lt;br /&gt;
{| border=&amp;quot;1px&amp;quot; cellpadding=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; width=&amp;quot;100%&amp;quot; style=&amp;quot;font-size: small; align: left&amp;quot;&lt;br /&gt;
|- align=center style=&amp;quot;color: red;&amp;quot;&lt;br /&gt;
|colspan=3|&#039;&#039;&#039;Welcome to Math 257&#039;&#039;&#039;&lt;br /&gt;
|- align=left&lt;br /&gt;
!#&lt;br /&gt;
!Week of...&lt;br /&gt;
!Notes and Links&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|1&lt;br /&gt;
|Sep 12&lt;br /&gt;
|[[1617-257/About This Class|About This Class]]; Day 1 Handout ({{pensieve link|Classes/1617-257-AnalysisII/160912/Day1.pdf|pdf}}, {{pensieve link|Classes/1617-257-AnalysisII/160912/Day1.html|html}}); [[1617-257/Classnotes for Monday September 12|Monday]], [[1617-257/Classnotes for Wednesday September 14|Wednesday]], [[1617-257/Classnotes for Friday September 16|Friday]], Day 2 Handout ({{pensieve link|Classes/1617-257-AnalysisII/160914/Day2.pdf|pdf}}, {{pensieve link|Classes/1617-257-AnalysisII/160914/Day2.html|html}}); [[Media:1617-257_Notes_First week.pdf|First Week Notes]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|2&lt;br /&gt;
|Sep 19&lt;br /&gt;
|[[1617-257/Classnotes for Monday September 19|Monday]], [[1617-257/Classnotes for Wednesday September 21|Wednesday]], [[Media:1617-257-Tutorial2Handout.pdf|Tutorial 2 Handout]], [[1617-257/Classnotes for Friday September 23|Friday]], [[Media:1617-257_Notes_second_week.pdf|Second week notes]], [[1617-257/Homework Assignment 1|HW1]], [[1617-257/Homework_Assignment_1_Solutions|HW1 Solutions]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|3&lt;br /&gt;
|Sep 26&lt;br /&gt;
|[[1617-257/Classnotes for Monday September 26|Monday]], [[1617-257/Classnotes for Wednesday September 28|Wednesday]], [[Media:1617-257-Tutorial3Handout.pdf|Tutorial 3 Handout]], [[1617-257/Classnotes for Friday September 30|Friday]], [[Media:1617-257_Notes_Third_week.pdf|Third week notes]], [[1617-257/Class_Photo|Class Photo]], [[1617-257/Homework Assignment 2|HW2]], [[1617-257/Homework_Assignment_2_Solutions|HW2 Solutions]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|4&lt;br /&gt;
|Oct 3&lt;br /&gt;
|[[1617-257/Classnotes for Monday October 3|Monday]], [[1617-257/Classnotes for Wednesday October 5|Wednesday]], [[1617-257/Classnotes for Friday October 7|Friday]], [[Media:1617-257_3rd week_notes.pdf|4th week notes]], [[1617-257/Homework Assignment 3|HW3]], [[1617-257/Homework_Assignment_3_Solutions|HW3 Solutions]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|5&lt;br /&gt;
|Oct 10&lt;br /&gt;
|Monday is Thanksgiving, no class; [[1617-257/Classnotes for Wednesday October 12|Wednesday]], [[1617-257/Classnotes for Friday October 14|Friday]], [[Media:1617-257_Notes_5th_week.pdf|5th week notes]], [[1617-257/Homework Assignment 4|HW4]], [[1617-257/Homework_Assignment_4_Solutions|HW4 Solutions]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|6&lt;br /&gt;
|Oct 17&lt;br /&gt;
|[[1617-257/Classnotes for Monday October 17|Monday]], [[1617-257/Classnotes for Wednesday October 19|Wednesday]], [[1617-257/Classnotes for Friday October 21|Friday]], [[Media:1617-257_Notes_6th_week.pdf|6th week notes]], [[1617-257/Homework Assignment 5|HW5]], [[1617-257/Homework_Assignment_5_Solutions|HW5 Solutions]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|7&lt;br /&gt;
|Oct 24&lt;br /&gt;
|[[1617-257/Classnotes for Monday October 24|Monday]], [[1617-257/Classnotes for Wednesday October 26|Wednesday]], [[1617-257/Classnotes for Friday October 28|Friday]], [[Media:1617-257_Notes_7th_week.pdf|7th week notes]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|8&lt;br /&gt;
|Oct 31&lt;br /&gt;
|Monday is last day to switch to MAT 235; |[[1617-257/Classnotes for Monday October 31|Monday]]; [[1617-257/Term Test 1|Term test 1]]; [[1617-257/Classnotes for Wednesday November 2|Wednesday]], [[1617-257/Homework Assignment 6|HW6]], [[Media:1617-257_HW6_assignment.pdf|HW6 pdf]], [[1617-257/Homework_Assignment_6_Solutions|HW6 Solutions]],  [[1617-257/Classnotes for Friday November 4|Friday]], [[Media:1617-257_Notes_8th_week.pdf|8th week notes]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|9&lt;br /&gt;
|Nov 7&lt;br /&gt;
|Monday is last day to switch to MAT 237; Monday-Tuesday is UofT Fall Break; [[1617-257/Classnotes for Wednesday November 9|Wednesday]], [[1617-257/Homework Assignment 7|HW7]], [[1617-257/Homework_Assignment_7_Solutions|HW7 Solutions]], [[1617-257/Classnotes for Friday November 11|Friday]],  [[Media:1617-257_Notes_9th_week.pdf|9th week notes]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|10&lt;br /&gt;
|Nov 14&lt;br /&gt;
||[[1617-257/Classnotes for Monday November 14|Monday]], [[1617-257/Classnotes for Wednesday November 16|Wednesday]], [[1617-257/Homework Assignment 8|HW8]], [[Media:1617-257_HW8_assignment.pdf|HW8 pdf]], [[1617-257/Homework_Assignment_8_Solutions|HW8 Solutions]], [[1617-257/Classnotes for Friday November 18|Friday]], [https://1drv.ms/f/s!AoMe0QL0ZvZBhfcU4r7HYPTGFJObSg Lecture recordings],  [[Media:1617-257_Notes_10th_week.pdf|10th week notes]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|11&lt;br /&gt;
|Nov 21&lt;br /&gt;
||[[1617-257/Classnotes for Monday November 21|Monday]], [[1617-257/Classnotes for Wednesday November 23|Wednesday]], [[1617-257/Homework Assignment 9|HW9]], [[Media:1617-257_HW9_assignment.pdf|HW9 pdf]], [[1617-257/Homework_Assignment_9_Solutions|HW9 Solutions]], [[1617-257/Classnotes for Friday November 25|Friday]], [https://1drv.ms/f/s!AoMe0QL0ZvZBhfcsEu9fys-1mtsIGw Lecture recordings], [[Media:1617-257_notes_11th_week.pdf|11th week notes]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|12&lt;br /&gt;
|Nov 28&lt;br /&gt;
||[[1617-257/Classnotes for Monday November 28|Monday]], [[1617-257/Classnotes for Wednesday November 30|Wednesday]], [[1617-257/Homework Assignment 10|HW10]], [[1617-257/Homework_Assignment_10_Solutions|HW10 Solutions]],makeup class on [[1617-257/Classnotes for Thursday December 1|Thursday]] at GB 120 at 5PM, no class and no DBN office hours Friday! [[Media:1617-257_notes_12th_week.pdf|12th week notes]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|13&lt;br /&gt;
|Dec 5&lt;br /&gt;
||[[1617-257/Classnotes for Monday December 5|Monday]], [[1617-257/Classnotes for Wednesday December 7|Wednesday]], [[Media:1617-257_notes_13th_week.pdf|13th week notes]] Semester ends on Wednesday - no class Friday.&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|B&lt;br /&gt;
|Dec 12,19,26&lt;br /&gt;
|No classes: other classes&#039; finals, winter break.&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|14&lt;br /&gt;
|Jan 2&lt;br /&gt;
|Class resumes Friday at RS211, no tutorials or office hours this week, [[1617-257/Classnotes for Friday January 6|Friday]], [[Media: 1617-257_notes_Jan_06_handwriting.pdf|Friday notes]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|15&lt;br /&gt;
|Jan 9&lt;br /&gt;
||[[1617-257/Classnotes for Monday January 9|Monday]], [[1617-257/Classnotes for Wednesday January 11|Wednesday]], [[1617-257/Classnotes for Friday January 13|Friday]], [[Media:1617-257_notes_jan9-jan13.pdf|Weekly notes]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|16&lt;br /&gt;
|Jan 16&lt;br /&gt;
||[[1617-257/Classnotes for Monday January 16|Monday]], [[1617-257/Term Test 2|Term test 2]]; [[1617-257/Classnotes for Wednesday January 18|Wednesday]], [[1617-257/Homework Assignment 11|HW11]], [[Media:1617-257_HW11_assignment.pdf|HW11 inline pdf]],[[1617-257/homework 11 assignment solutions|HW11 solutions]], [[1617-257/Classnotes for Friday January 20|Friday]], [[Media:1617-257_notes_jan16-jan20.pdf|Weekly notes]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|17&lt;br /&gt;
|Jan 23&lt;br /&gt;
||[[1617-257/Classnotes for Monday January 23|Monday]]; Hour 44 Handout ({{pensieve link|Classes/1617-257b-AnalysisII/Hour44Handout.pdf|pdf}}, {{pensieve link|Classes/1617-257b-AnalysisII/Hour44Handout.html|html}}); [[1617-257/Classnotes for Wednesday January 25|Wednesday]], [[1617-257/Homework Assignment 12|HW12]], [[Media:1617-257_HW12_assignment.pdf|HW12 inline pdf]], [[1617-257/homework 12 assignment solutions|HW12 Solutions]], [[1617-257/Classnotes for Friday January 27|Friday]], [[Media:1617-257_classnotes Jan23-27.pdf|Weekly notes]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|18&lt;br /&gt;
|Jan 30&lt;br /&gt;
||[[1617-257/Classnotes for Monday January 30|Monday]], [[1617-257/Classnotes for Wednesday February 1|Wednesday]], [[1617-257/Homework Assignment 13|HW13]], [[Media:1617-257_HW13_assignment.pdf|HW13 inline pdf]], [[1617-257/homework 13 assignment solutions|HW13 Solutions]],[[1617-257/Classnotes for Friday February 3|Friday]], [[Media:1617-257_Notes_Week18.pdf|Weekly Notes]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|19&lt;br /&gt;
|Feb 6&lt;br /&gt;
||[[1617-257/Classnotes for Monday February 6|Monday]], [[1617-257/Classnotes for Wednesday February 8|Wednesday]], [[1617-257/Homework Assignment 14|HW14]], [[Media:1617-257_HW14_assignment.pdf|HW14 inline pdf]], [[1617-257/Classnotes for Friday February 10|Friday]], [[Media:1617-257_Notes_Week19.pdf|Weekly Notes]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|20&lt;br /&gt;
|Feb 13&lt;br /&gt;
||[[1617-257/Classnotes for Monday February 13|Monday]], [[1617-257/Classnotes for Wednesday February 15|Wednesday]], [[1617-257/Homework Assignment 15|HW15]], [[Media:1617-257_HW15_assignment.pdf|HW15 inline pdf]], [[1617-257/Classnotes for Friday February 17|Friday]], UofT examination table posted on Friday.&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|R&lt;br /&gt;
|Feb 20&lt;br /&gt;
|Reading week - no classes; Tuesday is the last day to drop this class.&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|21&lt;br /&gt;
|Feb 27&lt;br /&gt;
||[[1617-257/Classnotes for Monday February 27|Monday]], [[1617-257/Classnotes for Wednesday March 1|Wednesday]], [[1617-257/Homework Assignment 16|HW16]], [[Media:1617-257_HW16_assignment.pdf|HW16 inline pdf]], [[1617-257/Classnotes for Friday March 3|Friday]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|22&lt;br /&gt;
|Mar 6&lt;br /&gt;
||[[1617-257/Classnotes for Monday March 6|Monday]], [[1617-257/Classnotes for Wednesday March 8|Wednesday]], [[1617-257/Classnotes for Friday March 10|Friday]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|23&lt;br /&gt;
|Mar 13&lt;br /&gt;
||[[1617-257/Classnotes for Monday March 13|Monday]], [[1617-257/Term Test 3|Term test 3]] on Tuesday at 5-7PM; [[1617-257/Classnotes for Wednesday March 15|Wednesday]], [[1617-257/Homework Assignment 17|HW17]], [[1617-257/Classnotes for Friday March 17|Friday]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|24&lt;br /&gt;
|Mar 20&lt;br /&gt;
||[[1617-257/Classnotes for Monday March 20|Monday]], [[1617-257/Classnotes for Wednesday March 22|Wednesday]], [[1617-257/Homework Assignment 18|HW18]], [[1617-257/Classnotes for Friday March 24|Friday]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|25&lt;br /&gt;
|Mar 27&lt;br /&gt;
||[[1617-257/Classnotes for Monday March 27|Monday]], [[1617-257/Classnotes for Wednesday March 29|Wednesday]], [[1617-257/Homework Assignment 19|HW19]], [[1617-257/Classnotes for Friday March 31|Friday]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|26&lt;br /&gt;
|Apr 3&lt;br /&gt;
||[[1617-257/Classnotes for Monday Apr 3|Monday]], [[1617-257/Classnotes for Wednesday Arl 5|Wednesday]]; Semester ends on Wednesday - no tutorials Wednesday and Thursday, no class Friday.&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|F&lt;br /&gt;
|Apr10-28&lt;br /&gt;
|[[1617-257/The Final Exam|The Final Exam]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|colspan=3 align=center|[[1617-257/Register of Good Deeds|Register of Good Deeds]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|colspan=3 align=center|[[1617-257/Riddle Repository|Riddle Repository]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|colspan=3 align=center|[[Image:1617-257-ClassPhoto.jpg|310px|Class Photo]]&amp;lt;br/&amp;gt;[[1617-257/Class Photo|Add your name / see who&#039;s in!]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|colspan=3 align=center|&amp;lt;math&amp;gt;\int_M d\omega=\int_{\partial M}\omega&amp;lt;/math&amp;gt;&lt;br /&gt;
|}&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/Homework_Assignment_10_Solutions&amp;diff=16130</id>
		<title>1617-257/Homework Assignment 10 Solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/Homework_Assignment_10_Solutions&amp;diff=16130"/>
		<updated>2017-02-26T23:58:01Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: /* Student Solutions */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;==Doing==&lt;br /&gt;
&#039;&#039;&#039;Solve&#039;&#039;&#039; &#039;&#039;all&#039;&#039; the problems in section 15, but submit only your solutions of problems 1, 3, and 6. In addition, solve and submit your solution of the following problem:&lt;br /&gt;
&lt;br /&gt;
&amp;lt;u&amp;gt;&#039;&#039;&#039;Problem A.&#039;&#039;&#039;&amp;lt;/u&amp;gt; Consider the function &amp;lt;math&amp;gt;f\colon[0,\infty)\to{\mathbb R}&amp;lt;/math&amp;gt; defined by &amp;lt;math&amp;gt;f(x)=\sin(x^2)&amp;lt;/math&amp;gt;. Show that&lt;br /&gt;
# The limit &amp;lt;math&amp;gt;\lim_{x\to\infty}f(x)&amp;lt;/math&amp;gt; does not exist.&lt;br /&gt;
# The limit &amp;lt;math&amp;gt;\lim_{N\to\infty}\int_0^Nf(x)dx&amp;lt;/math&amp;gt; does exist (yet do not attempt to compute it).&lt;br /&gt;
# The extended integral &amp;lt;math&amp;gt;\int_{(0,\infty)}f&amp;lt;/math&amp;gt; does not exist.&lt;br /&gt;
&lt;br /&gt;
==Student Solutions==&lt;br /&gt;
&lt;br /&gt;
[[Media:1617-257_HW_10-solution-wangy306.pdf|Student 1]]&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/Homework_Assignment_10_Solutions&amp;diff=16129</id>
		<title>1617-257/Homework Assignment 10 Solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/Homework_Assignment_10_Solutions&amp;diff=16129"/>
		<updated>2017-02-26T23:56:07Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: /* Student Solutions */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;==Student Solutions==&lt;br /&gt;
&lt;br /&gt;
[[Media:1617-257_HW_10-solution-wangy306.pdf|Student 1]]&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=File:1617-257_HW_10-solution-wangy306.pdf&amp;diff=16128</id>
		<title>File:1617-257 HW 10-solution-wangy306.pdf</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=File:1617-257_HW_10-solution-wangy306.pdf&amp;diff=16128"/>
		<updated>2017-02-26T23:55:21Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/Homework_Assignment_10_Solutions&amp;diff=16127</id>
		<title>1617-257/Homework Assignment 10 Solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/Homework_Assignment_10_Solutions&amp;diff=16127"/>
		<updated>2017-02-26T23:54:26Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: Created page with &amp;quot;==Student Solutions==&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;==Student Solutions==&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/Navigation&amp;diff=16126</id>
		<title>1617-257/Navigation</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/Navigation&amp;diff=16126"/>
		<updated>2017-02-26T23:53:03Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;noinclude&amp;gt;Back to [[1617-257]].&amp;lt;br/&amp;gt;&amp;lt;/noinclude&amp;gt;&lt;br /&gt;
{| border=&amp;quot;1px&amp;quot; cellpadding=&amp;quot;1&amp;quot; cellspacing=&amp;quot;0&amp;quot; width=&amp;quot;100%&amp;quot; style=&amp;quot;font-size: small; align: left&amp;quot;&lt;br /&gt;
|- align=center style=&amp;quot;color: red;&amp;quot;&lt;br /&gt;
|colspan=3|&#039;&#039;&#039;Welcome to Math 257&#039;&#039;&#039;&lt;br /&gt;
|- align=left&lt;br /&gt;
!#&lt;br /&gt;
!Week of...&lt;br /&gt;
!Notes and Links&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|1&lt;br /&gt;
|Sep 12&lt;br /&gt;
|[[1617-257/About This Class|About This Class]]; Day 1 Handout ({{pensieve link|Classes/1617-257-AnalysisII/160912/Day1.pdf|pdf}}, {{pensieve link|Classes/1617-257-AnalysisII/160912/Day1.html|html}}); [[1617-257/Classnotes for Monday September 12|Monday]], [[1617-257/Classnotes for Wednesday September 14|Wednesday]], [[1617-257/Classnotes for Friday September 16|Friday]], Day 2 Handout ({{pensieve link|Classes/1617-257-AnalysisII/160914/Day2.pdf|pdf}}, {{pensieve link|Classes/1617-257-AnalysisII/160914/Day2.html|html}}); [[Media:1617-257_Notes_First week.pdf|First Week Notes]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|2&lt;br /&gt;
|Sep 19&lt;br /&gt;
|[[1617-257/Classnotes for Monday September 19|Monday]], [[1617-257/Classnotes for Wednesday September 21|Wednesday]], [[Media:1617-257-Tutorial2Handout.pdf|Tutorial 2 Handout]], [[1617-257/Classnotes for Friday September 23|Friday]], [[Media:1617-257_Notes_second_week.pdf|Second week notes]], [[1617-257/Homework Assignment 1|HW1]], [[1617-257/Homework_Assignment_1_Solutions|HW1 Solutions]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|3&lt;br /&gt;
|Sep 26&lt;br /&gt;
|[[1617-257/Classnotes for Monday September 26|Monday]], [[1617-257/Classnotes for Wednesday September 28|Wednesday]], [[Media:1617-257-Tutorial3Handout.pdf|Tutorial 3 Handout]], [[1617-257/Classnotes for Friday September 30|Friday]], [[Media:1617-257_Notes_Third_week.pdf|Third week notes]], [[1617-257/Class_Photo|Class Photo]], [[1617-257/Homework Assignment 2|HW2]], [[1617-257/Homework_Assignment_2_Solutions|HW2 Solutions]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|4&lt;br /&gt;
|Oct 3&lt;br /&gt;
|[[1617-257/Classnotes for Monday October 3|Monday]], [[1617-257/Classnotes for Wednesday October 5|Wednesday]], [[1617-257/Classnotes for Friday October 7|Friday]], [[Media:1617-257_3rd week_notes.pdf|4th week notes]], [[1617-257/Homework Assignment 3|HW3]], [[1617-257/Homework_Assignment_3_Solutions|HW3 Solutions]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|5&lt;br /&gt;
|Oct 10&lt;br /&gt;
|Monday is Thanksgiving, no class; [[1617-257/Classnotes for Wednesday October 12|Wednesday]], [[1617-257/Classnotes for Friday October 14|Friday]], [[Media:1617-257_Notes_5th_week.pdf|5th week notes]], [[1617-257/Homework Assignment 4|HW4]], [[1617-257/Homework_Assignment_4_Solutions|HW4 Solutions]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|6&lt;br /&gt;
|Oct 17&lt;br /&gt;
|[[1617-257/Classnotes for Monday October 17|Monday]], [[1617-257/Classnotes for Wednesday October 19|Wednesday]], [[1617-257/Classnotes for Friday October 21|Friday]], [[Media:1617-257_Notes_6th_week.pdf|6th week notes]], [[1617-257/Homework Assignment 5|HW5]], [[1617-257/Homework_Assignment_5_Solutions|HW5 Solutions]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|7&lt;br /&gt;
|Oct 24&lt;br /&gt;
|[[1617-257/Classnotes for Monday October 24|Monday]], [[1617-257/Classnotes for Wednesday October 26|Wednesday]], [[1617-257/Classnotes for Friday October 28|Friday]], [[Media:1617-257_Notes_7th_week.pdf|7th week notes]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|8&lt;br /&gt;
|Oct 31&lt;br /&gt;
|Monday is last day to switch to MAT 235; |[[1617-257/Classnotes for Monday October 31|Monday]]; [[1617-257/Term Test 1|Term test 1]]; [[1617-257/Classnotes for Wednesday November 2|Wednesday]], [[1617-257/Homework Assignment 6|HW6]], [[Media:1617-257_HW6_assignment.pdf|HW6 pdf]], [[1617-257/Homework_Assignment_6_Solutions|HW6 Solutions]],  [[1617-257/Classnotes for Friday November 4|Friday]], [[Media:1617-257_Notes_8th_week.pdf|8th week notes]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|9&lt;br /&gt;
|Nov 7&lt;br /&gt;
|Monday is last day to switch to MAT 237; Monday-Tuesday is UofT Fall Break; [[1617-257/Classnotes for Wednesday November 9|Wednesday]], [[1617-257/Homework Assignment 7|HW7]], [[1617-257/Homework_Assignment_7_Solutions|HW7 Solutions]], [[1617-257/Classnotes for Friday November 11|Friday]],  [[Media:1617-257_Notes_9th_week.pdf|9th week notes]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|10&lt;br /&gt;
|Nov 14&lt;br /&gt;
||[[1617-257/Classnotes for Monday November 14|Monday]], [[1617-257/Classnotes for Wednesday November 16|Wednesday]], [[1617-257/Homework Assignment 8|HW8]], [[Media:1617-257_HW8_assignment.pdf|HW8 pdf]], [[1617-257/Homework_Assignment_8_Solutions|HW8 Solutions]], [[1617-257/Classnotes for Friday November 18|Friday]], [https://1drv.ms/f/s!AoMe0QL0ZvZBhfcU4r7HYPTGFJObSg Lecture recordings],  [[Media:1617-257_Notes_10th_week.pdf|10th week notes]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|11&lt;br /&gt;
|Nov 21&lt;br /&gt;
||[[1617-257/Classnotes for Monday November 21|Monday]], [[1617-257/Classnotes for Wednesday November 23|Wednesday]], [[1617-257/Homework Assignment 9|HW9]], [[Media:1617-257_HW9_assignment.pdf|HW9 pdf]], [[1617-257/Homework_Assignment_9_Solutions|HW9 Solutions]], [[1617-257/Classnotes for Friday November 25|Friday]], [https://1drv.ms/f/s!AoMe0QL0ZvZBhfcsEu9fys-1mtsIGw Lecture recordings], [[Media:1617-257_notes_11th_week.pdf|11th week notes]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|12&lt;br /&gt;
|Nov 28&lt;br /&gt;
||[[1617-257/Classnotes for Monday November 28|Monday]], [[1617-257/Classnotes for Wednesday November 30|Wednesday]], [[1617-257/Homework Assignment 10|HW10]], [[1617-257/Homework_Assignment_10_Solutions|HW10 Solutions]],makeup class on [[1617-257/Classnotes for Thursday December 1|Thursday]] at GB 120 at 5PM, no class and no DBN office hours Friday! [[Media:1617-257_notes_12th_week.pdf|12th week notes]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|13&lt;br /&gt;
|Dec 5&lt;br /&gt;
||[[1617-257/Classnotes for Monday December 5|Monday]], [[1617-257/Classnotes for Wednesday December 7|Wednesday]], [[Media:1617-257_notes_13th_week.pdf|13th week notes]] Semester ends on Wednesday - no class Friday.&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|B&lt;br /&gt;
|Dec 12,19,26&lt;br /&gt;
|No classes: other classes&#039; finals, winter break.&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|14&lt;br /&gt;
|Jan 2&lt;br /&gt;
|Class resumes Friday at RS211, no tutorials or office hours this week, [[1617-257/Classnotes for Friday January 6|Friday]], [[Media: 1617-257_notes_Jan_06_handwriting.pdf|Friday notes]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|15&lt;br /&gt;
|Jan 9&lt;br /&gt;
||[[1617-257/Classnotes for Monday January 9|Monday]], [[1617-257/Classnotes for Wednesday January 11|Wednesday]], [[1617-257/Classnotes for Friday January 13|Friday]], [[Media:1617-257_notes_jan9-jan13.pdf|Weekly notes]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|16&lt;br /&gt;
|Jan 16&lt;br /&gt;
||[[1617-257/Classnotes for Monday January 16|Monday]], [[1617-257/Term Test 2|Term test 2]]; [[1617-257/Classnotes for Wednesday January 18|Wednesday]], [[1617-257/Homework Assignment 11|HW11]], [[Media:1617-257_HW11_assignment.pdf|HW11 inline pdf]],[[1617-257/homework 11 assignment solutions|HW11 soltions]], [[1617-257/Classnotes for Friday January 20|Friday]], [[Media:1617-257_notes_jan16-jan20.pdf|Weekly notes]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|17&lt;br /&gt;
|Jan 23&lt;br /&gt;
||[[1617-257/Classnotes for Monday January 23|Monday]]; Hour 44 Handout ({{pensieve link|Classes/1617-257b-AnalysisII/Hour44Handout.pdf|pdf}}, {{pensieve link|Classes/1617-257b-AnalysisII/Hour44Handout.html|html}}); [[1617-257/Classnotes for Wednesday January 25|Wednesday]], [[1617-257/Homework Assignment 12|HW12]], [[Media:1617-257_HW12_assignment.pdf|HW12 inline pdf]], [[1617-257/Classnotes for Friday January 27|Friday]], [[Media:1617-257_classnotes Jan23-27.pdf|Weekly notes]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|18&lt;br /&gt;
|Jan 30&lt;br /&gt;
||[[1617-257/Classnotes for Monday January 30|Monday]], [[1617-257/Classnotes for Wednesday February 1|Wednesday]], [[1617-257/Homework Assignment 13|HW13]], [[Media:1617-257_HW13_assignment.pdf|HW13 inline pdf]], [[1617-257/Classnotes for Friday February 3|Friday]], [[Media:1617-257_Notes_Week18.pdf|Weekly Notes]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|19&lt;br /&gt;
|Feb 6&lt;br /&gt;
||[[1617-257/Classnotes for Monday February 6|Monday]], [[1617-257/Classnotes for Wednesday February 8|Wednesday]], [[1617-257/Homework Assignment 14|HW14]], [[Media:1617-257_HW14_assignment.pdf|HW14 inline pdf]], [[1617-257/Classnotes for Friday February 10|Friday]], [[Media:1617-257_Notes_Week19.pdf|Weekly Notes]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|20&lt;br /&gt;
|Feb 13&lt;br /&gt;
||[[1617-257/Classnotes for Monday February 13|Monday]], [[1617-257/Classnotes for Wednesday February 15|Wednesday]], [[1617-257/Homework Assignment 15|HW15]], [[Media:1617-257_HW15_assignment.pdf|HW15 inline pdf]], [[1617-257/Classnotes for Friday February 17|Friday]], UofT examination table posted on Friday.&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|R&lt;br /&gt;
|Feb 20&lt;br /&gt;
|Reading week - no classes; Tuesday is the last day to drop this class.&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|21&lt;br /&gt;
|Feb 27&lt;br /&gt;
||[[1617-257/Classnotes for Monday February 27|Monday]], [[1617-257/Classnotes for Wednesday March 1|Wednesday]], [[1617-257/Homework Assignment 16|HW16]], [[1617-257/Classnotes for Friday March 3|Friday]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|22&lt;br /&gt;
|Mar 6&lt;br /&gt;
|&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|23&lt;br /&gt;
|Mar 13&lt;br /&gt;
|Term test 3 on Tuesday at 5-7PM; [[1617-257/Homework Assignment 17|HW17]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|24&lt;br /&gt;
|Mar 20&lt;br /&gt;
|[[1617-257/Homework Assignment 18|HW18]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|25&lt;br /&gt;
|Mar 27&lt;br /&gt;
|[[1617-257/Homework Assignment 19|HW19]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|26&lt;br /&gt;
|Apr 3&lt;br /&gt;
|Semester ends on Wednesday - no tutorials Wednesday and Thursday, no class Friday.&lt;br /&gt;
|- align=left&lt;br /&gt;
|align=center|F&lt;br /&gt;
|Apr10-28&lt;br /&gt;
|[[1617-257/The Final Exam|The Final Exam]].&lt;br /&gt;
|- align=left&lt;br /&gt;
|colspan=3 align=center|[[1617-257/Register of Good Deeds|Register of Good Deeds]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|colspan=3 align=center|[[1617-257/Riddle Repository|Riddle Repository]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|colspan=3 align=center|[[Image:1617-257-ClassPhoto.jpg|310px|Class Photo]]&amp;lt;br/&amp;gt;[[1617-257/Class Photo|Add your name / see who&#039;s in!]]&lt;br /&gt;
|- align=left&lt;br /&gt;
|colspan=3 align=center|&amp;lt;math&amp;gt;\int_M d\omega=\int_{\partial M}\omega&amp;lt;/math&amp;gt;&lt;br /&gt;
|}&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/homework_11_assignment_solutions&amp;diff=16125</id>
		<title>1617-257/homework 11 assignment solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/homework_11_assignment_solutions&amp;diff=16125"/>
		<updated>2017-02-26T23:47:59Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: /* Student Solutions */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{1617-257/Navigation}}&lt;br /&gt;
&lt;br /&gt;
==Doing==&lt;br /&gt;
See {{Pensieve link|Classes/1617-257b-AnalysisII/HW11.pdf|HW11.pdf}}.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==Student Solutions==&lt;br /&gt;
&lt;br /&gt;
[[Media:1617-257_hw solutions student 1.pdf|Student 1]]&lt;br /&gt;
&lt;br /&gt;
[[Media:1617-257-HW_11_solution-wangy306.pdf|Student 2]]&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=File:1617-257-HW_11_solution-wangy306.pdf&amp;diff=16124</id>
		<title>File:1617-257-HW 11 solution-wangy306.pdf</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=File:1617-257-HW_11_solution-wangy306.pdf&amp;diff=16124"/>
		<updated>2017-02-26T23:46:33Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/Homework_Assignment_9_Solutions&amp;diff=15997</id>
		<title>1617-257/Homework Assignment 9 Solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/Homework_Assignment_9_Solutions&amp;diff=15997"/>
		<updated>2017-01-25T05:23:43Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: /* Student Solutions */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{1617-257/Navigation}}&lt;br /&gt;
==Doing==&lt;br /&gt;
&#039;&#039;&#039;Solve&#039;&#039;&#039; &#039;&#039;all&#039;&#039; the problems in sections 13-14, but submit only your solutions of problem 4 in section 14 and problems 4 and 8 in section 15. In addition, solve and submit your solution of the following problems:&lt;br /&gt;
&lt;br /&gt;
&amp;lt;u&amp;gt;&#039;&#039;&#039;Problem A.&#039;&#039;&#039;&amp;lt;/u&amp;gt; Compute the volume of the &amp;quot;2D ice cream cone&amp;quot;, &amp;lt;math&amp;gt;C=\left\{(x,y)\colon |x|\leq y\leq 1+\sqrt{1-x^2}\right\}&amp;lt;/math&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;u&amp;gt;&#039;&#039;&#039;Problem B.&#039;&#039;&#039;&amp;lt;/u&amp;gt; Compute the volume of the &amp;quot;n-dimensional simplex&amp;quot; &amp;lt;math&amp;gt;\Delta_n=\left\{(t_1,\ldots,t_n)\colon 0\leq t_1\leq t_2\leq\ldots\leq t_n\leq 1\right\}&amp;lt;/math&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
[[Media:1617-257_HW9_assignment.pdf|HW9 pdf]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==Student Solutions==&lt;br /&gt;
&lt;br /&gt;
[[Media:1617-257_HW9.pdf|HW9 Solution pdf]]&lt;br /&gt;
&lt;br /&gt;
[[media:1617-257-MAT257_HW_9_solution_wangy306.pdf|Student 2]]&lt;br /&gt;
&lt;br /&gt;
[[media:1617-257-HW9_Not_Hand_In_wangy306.pdf|Not Hand In]]&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=File:1617-257-MAT257_HW_9_solution_wangy306.pdf&amp;diff=15996</id>
		<title>File:1617-257-MAT257 HW 9 solution wangy306.pdf</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=File:1617-257-MAT257_HW_9_solution_wangy306.pdf&amp;diff=15996"/>
		<updated>2017-01-25T05:22:08Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/Homework_Assignment_9_Solutions&amp;diff=15902</id>
		<title>1617-257/Homework Assignment 9 Solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/Homework_Assignment_9_Solutions&amp;diff=15902"/>
		<updated>2017-01-13T05:37:21Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: /* Student Solutions */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{1617-257/Navigation}}&lt;br /&gt;
==Doing==&lt;br /&gt;
&#039;&#039;&#039;Solve&#039;&#039;&#039; &#039;&#039;all&#039;&#039; the problems in sections 13-14, but submit only your solutions of problem 4 in section 14 and problems 4 and 8 in section 15. In addition, solve and submit your solution of the following problems:&lt;br /&gt;
&lt;br /&gt;
&amp;lt;u&amp;gt;&#039;&#039;&#039;Problem A.&#039;&#039;&#039;&amp;lt;/u&amp;gt; Compute the volume of the &amp;quot;2D ice cream cone&amp;quot;, &amp;lt;math&amp;gt;C=\left\{(x,y)\colon |x|\leq y\leq 1+\sqrt{1-x^2}\right\}&amp;lt;/math&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;u&amp;gt;&#039;&#039;&#039;Problem B.&#039;&#039;&#039;&amp;lt;/u&amp;gt; Compute the volume of the &amp;quot;n-dimensional simplex&amp;quot; &amp;lt;math&amp;gt;\Delta_n=\left\{(t_1,\ldots,t_n)\colon 0\leq t_1\leq t_2\leq\ldots\leq t_n\leq 1\right\}&amp;lt;/math&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
[[Media:1617-257_HW9_assignment.pdf|HW9 pdf]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==Student Solutions==&lt;br /&gt;
&lt;br /&gt;
[[Media:1617-257_HW9.pdf|HW9 Solution pdf]]&lt;br /&gt;
&lt;br /&gt;
[[media:1617-257-HW9_Not_Hand_In_wangy306.pdf|Not Hand In]]&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=File:1617-257-HW9_Not_Hand_In_wangy306.pdf&amp;diff=15901</id>
		<title>File:1617-257-HW9 Not Hand In wangy306.pdf</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=File:1617-257-HW9_Not_Hand_In_wangy306.pdf&amp;diff=15901"/>
		<updated>2017-01-13T05:35:54Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/Class_Photo&amp;diff=15892</id>
		<title>1617-257/Class Photo</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/Class_Photo&amp;diff=15892"/>
		<updated>2017-01-12T04:47:36Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: /* Who We Are... */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;Our class on September 30, 2016:&lt;br /&gt;
&lt;br /&gt;
[[Image:1617-257-ClassPhoto.jpg|thumb|centre|800px|Class Photo: click to enlarge]]&lt;br /&gt;
{{1617-257/Navigation}}&lt;br /&gt;
&lt;br /&gt;
Please identify yourself in this photo! There are two ways to do that:&lt;br /&gt;
&lt;br /&gt;
* [[Special:Userlogin|Log in]] to this Wiki and edit this page. Put your name, userid, email address and location in the picture in the alphabetical list below.&lt;br /&gt;
* Send [[User:Drorbn|Dror]] an email message with this information.&lt;br /&gt;
&lt;br /&gt;
The first option is more fun but less private.&lt;br /&gt;
&lt;br /&gt;
===Who We Are...===&lt;br /&gt;
&lt;br /&gt;
{| align=center border=1 cellspacing=1&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=Bar-Natan|first=Dror|userid=Drorbn|email=drorbn@ math. toronto. edu|location=facing everybody, as the photographer|comments=Take this entry as a model and leave it first. Otherwise alphabetize by last name. Feel free to leave some fields blank. For better line-breaking, leave a space next to the &amp;quot;@&amp;quot; in email addresses.}}&lt;br /&gt;
&lt;br /&gt;
&amp;lt;!--PLEASE KEEP IN ALPHABETICAL ORDER, BY LAST NAME--&amp;gt;&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=Beach|first=Isabel|userid=Beach|email=isabel. beach@ mail. utoronto. ca|location=first row, third from left, burgundy U of T sweater|comments=Artist, wannabe astronomer, nature enthusiast.}}&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=Divic|first=Stefan|userid=Stefan.divic|email=stefan. divic@ mail. utoronto. ca|location=Right behind the tall dude with the blue/white-striped shirt|comments=Interested in making music, traveling, meeting people!}}&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=Hu|first=Janelle|userid=Janelle|email=janelle.hu@ mail. utoronto. ca|location=third row, third from the right|comments=Joined a dance crew this year.&lt;br /&gt;
Math related: my roommates are 4th year math specialists}}&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=Im|first=Jeffrey|userid=jeffim|email=jim@ math. toronto. edu|location=bottom-right corner|comments=One of two TAs for this class. Student of George Elliott. Interested in C*-algebras/K-theory.}}&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=Khesin|first=Andrey|userid=Andrey Boris Khesin|email=andrey.khesin@gmail.com|location=second to last row, ~5th from the right, awesome black t-shirt|comments=Math and Physics Specialist.&lt;br /&gt;
Student of Prof. Bar-Natan.}}&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=Li|first=Xiaoyang|userid=Witchofagnesi|email=xiaoyang. li@ mail. utoronto. ca|location=fifth row, on the middle-left, head sticking out|comments=Loves classical music and poetry.}}&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=Li|first=Xuechen(Chen)|userid=Lxuechen|email=xuechen. li@ mail. utoronto. ca|location=left end of fourth row, with green shirt|comments=Loves puzzle solving and worshipping.}}&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=Maes|first=Yehuda|userid=Yehuda|email=yehudamaes@ mail. utoronto. ca|location=5th row, sitting in the center in a white shirt|comments=I love log walks on the beach, staring out at the sine waves.}}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=Moore|first=Darren|userid=DarrenMoo|email=da.moore@ mail. utoronto. ca|location=fourth row, standing, white UofT shirt|comments=Wannabe game dev, mathematician, musician, etc.}}&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=McBrien|first=Heather|userid=Heatherheather|email=heather.mcbrien@ mail. utoronto. ca|location=fourth row, standing, leaning back with the really strange facial expression and the blue sweater|comments=My name is Heather but some people (most) call me Kate.}}&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=Morton-Ferguson|first=Calder|userid=calder.oakes|email=calder. morton. ferguson@ mail. utoronto. ca|location=4th-ish row, standing and smiling with my arms around Darren and Tanny.|comments= It ain&#039;t got that swing if it don&#039;t mean a thing. Proof of the converse is left as an exercise.}}&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=Moturu|first=Abhishek|userid=Abhi.saim|email=abhi.saim@ gmail.com|location=first row, third from the right, white pants|comments=Two loves: math and chicken.}}&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=Stanoulis|first=Thomas|userid=Tstanoulis|email=thomas.stanoulis @ mail.utoronto.ca |location=left side, third row, second person, dark brown-green-ish collared shirt|comments=Mostly thinking about the next meal.}}&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=Wang|first=Yixuan|userid=Wangy306|email=yixuansara.wang@ mail. utoronto. ca|location=fourth row, in the middle, with red hoddy|comments=Hope to have a kitty after graduation.}}&lt;br /&gt;
&lt;br /&gt;
{{Photo Entry|last=Xu|first=Xinyi|userid=Maggie|email=xinyi. xu97@ gmail. com|location=fourth row, first girl from right,with red glasses|comments=Interested in modern Origami.}}&lt;br /&gt;
&lt;br /&gt;
&amp;lt;!--PLEASE KEEP IN ALPHABETICAL ORDER, BY LAST NAME--&amp;gt;&lt;br /&gt;
|}&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/Homework_Assignment_8_Solutions&amp;diff=15891</id>
		<title>1617-257/Homework Assignment 8 Solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/Homework_Assignment_8_Solutions&amp;diff=15891"/>
		<updated>2017-01-12T04:31:41Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: /* Student Solutions */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{1617-257/Navigation}}&lt;br /&gt;
&lt;br /&gt;
==Doing==&lt;br /&gt;
&#039;&#039;&#039;Solve&#039;&#039;&#039; &#039;&#039;all&#039;&#039; the problems in section 12, but submit only your solutions of problem 3. In addition, solve and submit your solution of the following problem:&lt;br /&gt;
&lt;br /&gt;
&amp;lt;u&amp;gt;&#039;&#039;&#039;Problem A.&#039;&#039;&#039;&amp;lt;/u&amp;gt; Let &amp;lt;math&amp;gt;Q=[0,1]^3&amp;lt;/math&amp;gt; and let &amp;lt;math&amp;gt;f\colon Q\to{\mathbb R}&amp;lt;/math&amp;gt; be given by &amp;lt;math&amp;gt;f(x,y,z)=1&amp;lt;/math&amp;gt; if &amp;lt;math&amp;gt;x&amp;lt;y&amp;lt;z&amp;lt;/math&amp;gt;, and &amp;lt;math&amp;gt;f(x,y,z)=0&amp;lt;/math&amp;gt; otherwise. Compute &amp;lt;math&amp;gt;\int_Qf&amp;lt;/math&amp;gt;. (This problem is merely about computations. You may assume without proof that &amp;lt;math&amp;gt;f&amp;lt;/math&amp;gt; and all other functions you may encounter along the computation are integrable).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[Media:1617-257_HW8_assignment.pdf|HW8 pdf]]&lt;br /&gt;
&lt;br /&gt;
==Student Solutions==&lt;br /&gt;
[[media:1617-257-HW8-solution-wangy306.pdf|Student1]]&lt;br /&gt;
&lt;br /&gt;
[[media:1617-257-HW8_Not_Hand_In_wangy306.pdf|Not Hand In]]&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=File:1617-257-HW8_Not_Hand_In_wangy306.pdf&amp;diff=15890</id>
		<title>File:1617-257-HW8 Not Hand In wangy306.pdf</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=File:1617-257-HW8_Not_Hand_In_wangy306.pdf&amp;diff=15890"/>
		<updated>2017-01-12T04:30:13Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/Homework_Assignment_8_Solutions&amp;diff=15889</id>
		<title>1617-257/Homework Assignment 8 Solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/Homework_Assignment_8_Solutions&amp;diff=15889"/>
		<updated>2017-01-12T04:29:06Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: /* Student Solutions */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{1617-257/Navigation}}&lt;br /&gt;
&lt;br /&gt;
==Doing==&lt;br /&gt;
&#039;&#039;&#039;Solve&#039;&#039;&#039; &#039;&#039;all&#039;&#039; the problems in section 12, but submit only your solutions of problem 3. In addition, solve and submit your solution of the following problem:&lt;br /&gt;
&lt;br /&gt;
&amp;lt;u&amp;gt;&#039;&#039;&#039;Problem A.&#039;&#039;&#039;&amp;lt;/u&amp;gt; Let &amp;lt;math&amp;gt;Q=[0,1]^3&amp;lt;/math&amp;gt; and let &amp;lt;math&amp;gt;f\colon Q\to{\mathbb R}&amp;lt;/math&amp;gt; be given by &amp;lt;math&amp;gt;f(x,y,z)=1&amp;lt;/math&amp;gt; if &amp;lt;math&amp;gt;x&amp;lt;y&amp;lt;z&amp;lt;/math&amp;gt;, and &amp;lt;math&amp;gt;f(x,y,z)=0&amp;lt;/math&amp;gt; otherwise. Compute &amp;lt;math&amp;gt;\int_Qf&amp;lt;/math&amp;gt;. (This problem is merely about computations. You may assume without proof that &amp;lt;math&amp;gt;f&amp;lt;/math&amp;gt; and all other functions you may encounter along the computation are integrable).&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[Media:1617-257_HW8_assignment.pdf|HW8 pdf]]&lt;br /&gt;
&lt;br /&gt;
==Student Solutions==&lt;br /&gt;
[[media:1617-257-HW8-solution-wangy306.pdf|Student1]]&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=File:1617-257-HW8-solution-wangy306.pdf&amp;diff=15888</id>
		<title>File:1617-257-HW8-solution-wangy306.pdf</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=File:1617-257-HW8-solution-wangy306.pdf&amp;diff=15888"/>
		<updated>2017-01-12T04:27:29Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/Homework_Assignment_7_Solutions&amp;diff=15861</id>
		<title>1617-257/Homework Assignment 7 Solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/Homework_Assignment_7_Solutions&amp;diff=15861"/>
		<updated>2017-01-11T03:50:30Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: /* Student Solutions */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{1617-257/Navigation}}&lt;br /&gt;
&lt;br /&gt;
==Doing==&lt;br /&gt;
&#039;&#039;&#039;Solve&#039;&#039;&#039; &#039;&#039;all&#039;&#039; the problems in section 11, but submit only your solutions of problems 2, 4, 6, 8, and 9.&lt;br /&gt;
&lt;br /&gt;
==Student Solutions==&lt;br /&gt;
[[Media: 1617-257_hw7_solutions_P1_xinyi.pdf|Student1]]&lt;br /&gt;
&lt;br /&gt;
[[Media: 1617-257-HW7_wangy306.pdf|Student2]]&lt;br /&gt;
&lt;br /&gt;
[[Media: 1617-257-HW7-Not_Hand_In_wangy306.pdf|Not Hand In]]&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=File:1617-257-HW7-Not_Hand_In_wangy306.pdf&amp;diff=15860</id>
		<title>File:1617-257-HW7-Not Hand In wangy306.pdf</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=File:1617-257-HW7-Not_Hand_In_wangy306.pdf&amp;diff=15860"/>
		<updated>2017-01-11T03:48:16Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/Homework_Assignment_7_Solutions&amp;diff=15859</id>
		<title>1617-257/Homework Assignment 7 Solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/Homework_Assignment_7_Solutions&amp;diff=15859"/>
		<updated>2017-01-11T03:44:00Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: /* Student Solutions */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{1617-257/Navigation}}&lt;br /&gt;
&lt;br /&gt;
==Doing==&lt;br /&gt;
&#039;&#039;&#039;Solve&#039;&#039;&#039; &#039;&#039;all&#039;&#039; the problems in section 11, but submit only your solutions of problems 2, 4, 6, 8, and 9.&lt;br /&gt;
&lt;br /&gt;
==Student Solutions==&lt;br /&gt;
[[Media: 1617-257_hw7_solutions_P1_xinyi.pdf|Student1]]&lt;br /&gt;
&lt;br /&gt;
[[Media: 1617-257-HW7_wangy306.pdf|Student2]]&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=File:1617-257-HW7_wangy306.pdf&amp;diff=15858</id>
		<title>File:1617-257-HW7 wangy306.pdf</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=File:1617-257-HW7_wangy306.pdf&amp;diff=15858"/>
		<updated>2017-01-11T03:41:37Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/Homework_Assignment_6_Solutions&amp;diff=15840</id>
		<title>1617-257/Homework Assignment 6 Solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/Homework_Assignment_6_Solutions&amp;diff=15840"/>
		<updated>2017-01-09T18:49:49Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: /* Student Solutions */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{1617-257/Navigation}}&lt;br /&gt;
&lt;br /&gt;
==Doing==&lt;br /&gt;
&#039;&#039;&#039;Solve&#039;&#039;&#039; problems 1, &amp;lt;u&amp;gt;3&amp;lt;/u&amp;gt;, 5, &amp;lt;u&amp;gt;6&amp;lt;/u&amp;gt; in section 9 and problems &amp;lt;u&amp;gt;1&amp;lt;/u&amp;gt;, &amp;lt;u&amp;gt;3&amp;lt;/u&amp;gt;, 4 in section 10, but submit only the underlined problems/parts.  In addition, solve the following problems, though submit only your solutions of problem A:&lt;br /&gt;
&lt;br /&gt;
&amp;lt;u&amp;gt;&#039;&#039;&#039;Problem A.&#039;&#039;&#039;&amp;lt;/u&amp;gt; Find an example of a bounded continuous function on the semi-open interval &amp;lt;math&amp;gt;(0,1]&amp;lt;/math&amp;gt; which is not uniformly continuous.&lt;br /&gt;
&lt;br /&gt;
&#039;&#039;&#039;Problem B.&#039;&#039;&#039; Prove that every unbounded continuous function on the semi-open interval &amp;lt;math&amp;gt;(0,1]&amp;lt;/math&amp;gt; is not uniformly continuous.&lt;br /&gt;
&lt;br /&gt;
==Student Solutions==&lt;br /&gt;
&lt;br /&gt;
[[media:1617-257_hw6_solutions_P1_xinyi.pdf|Student 1]]&lt;br /&gt;
&lt;br /&gt;
[[media:1617-257_HW6_solutions_student2.pdf|Student 2]]&lt;br /&gt;
&lt;br /&gt;
[[media:1617-257_HW6_-_Not_Hand_In.pdf|Not Hand In]]&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=File:1617-257_HW6_-_Not_Hand_In.pdf&amp;diff=15839</id>
		<title>File:1617-257 HW6 - Not Hand In.pdf</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=File:1617-257_HW6_-_Not_Hand_In.pdf&amp;diff=15839"/>
		<updated>2017-01-09T18:48:41Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=1617-257/Homework_Assignment_6_Solutions&amp;diff=15838</id>
		<title>1617-257/Homework Assignment 6 Solutions</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=1617-257/Homework_Assignment_6_Solutions&amp;diff=15838"/>
		<updated>2017-01-09T18:19:42Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: /* Student Solutions */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{1617-257/Navigation}}&lt;br /&gt;
&lt;br /&gt;
==Doing==&lt;br /&gt;
&#039;&#039;&#039;Solve&#039;&#039;&#039; problems 1, &amp;lt;u&amp;gt;3&amp;lt;/u&amp;gt;, 5, &amp;lt;u&amp;gt;6&amp;lt;/u&amp;gt; in section 9 and problems &amp;lt;u&amp;gt;1&amp;lt;/u&amp;gt;, &amp;lt;u&amp;gt;3&amp;lt;/u&amp;gt;, 4 in section 10, but submit only the underlined problems/parts.  In addition, solve the following problems, though submit only your solutions of problem A:&lt;br /&gt;
&lt;br /&gt;
&amp;lt;u&amp;gt;&#039;&#039;&#039;Problem A.&#039;&#039;&#039;&amp;lt;/u&amp;gt; Find an example of a bounded continuous function on the semi-open interval &amp;lt;math&amp;gt;(0,1]&amp;lt;/math&amp;gt; which is not uniformly continuous.&lt;br /&gt;
&lt;br /&gt;
&#039;&#039;&#039;Problem B.&#039;&#039;&#039; Prove that every unbounded continuous function on the semi-open interval &amp;lt;math&amp;gt;(0,1]&amp;lt;/math&amp;gt; is not uniformly continuous.&lt;br /&gt;
&lt;br /&gt;
==Student Solutions==&lt;br /&gt;
&lt;br /&gt;
[[media:1617-257_hw6_solutions_P1_xinyi.pdf|Student 1]]&lt;br /&gt;
&lt;br /&gt;
[[media:1617-257_HW6_solutions_student2.pdf|Student 2]]&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
	<entry>
		<id>https://drorbn.net/index.php?title=File:1617-257_HW6_solutions_student2.pdf&amp;diff=15837</id>
		<title>File:1617-257 HW6 solutions student2.pdf</title>
		<link rel="alternate" type="text/html" href="https://drorbn.net/index.php?title=File:1617-257_HW6_solutions_student2.pdf&amp;diff=15837"/>
		<updated>2017-01-09T18:18:17Z</updated>

		<summary type="html">&lt;p&gt;Wangy306: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Wangy306</name></author>
	</entry>
</feed>