C959 wgu unit 4 - Study guides, Revision notes & Summaries
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C959 WGU unit 4 questions with 100% correct answers
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--2October 20232023/2024A+Available in bundle
- diagonal matrix 
square matrix which all non-diagonal entries are 0 
 
diagonal entries can be 0 
 
 
 
identity matrix 
diagonal matrix which all entries along main diagonal is 1, all other entries = 0 
 
 
 
can different sized matrices be added? 
no 
 
 
 
matrix addition 
 
[3|-4] + [-2|8] 
[1|0] + [-5|-3] 
= 
[3+-2|-4+8] 
[1+-5|0+-3] 
 
= 
[1|4] 
[-4|-3] 
 
 
 
scalar 
refers to real numbers 
 
ex_ 3, -5.1, π 
 
 
 
scalar multiple 
each entry is multiplied by scalar 
 
 
 
multiplying mat...
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