12-240/Classnotes for Thursday September 20: Difference between revisions

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== Complex number ==
== Complex number ==
'''Definition:'''

''' C'''={(a,b): a, b <math>\in\!\,</math> '''R'''}
''' C'''={(a,b): a, b <math>\in\!\,</math> '''R'''}

I ( of '''C''') = (1,0); 0 ( of '''C''')= (0,0)
[[Image:IMG.jpg]]
[[Image:IMG.jpg]]
[[Image:IMG2.jpg]]
[[Image:IMG2.jpg]]

Revision as of 12:29, 21 September 2012

In this class, the professor completes the lecture about complex number and then introduces vector space.


Complex number

Definition:

C={(a,b): a, b R}

I ( of C) = (1,0); 0 ( of C)= (0,0) File:IMG.jpg File:IMG2.jpg File:IMG3.jpg