Eye command with a matrix

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marie
marie 2013-2-20
Use the eye command to create the array A shown on the left below. Then use the
colon to address elements in the arrays and the eye command to change A to match the array
shown on the right.
http://i49.tinypic.com/20go38i.jpg
So far I have tried
A=eye(7,7)
A=[2,2,2,0,5,5,5;2,2,2,0,5,5,5;3,3,3,0,5,5,5;0,0,0,1,0,0,0;4,4,7,0,9,9,9;4,4,7,0,9,9,9;4,4,7,0,9,9,9]
to match the array i did
B=[A eye(7,0)]
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Santosh
Santosh 2013-2-20
colon is a vectorization operator whose usage is m:n. :3 here is not correct.
marie
marie 2013-2-20
I got it thank you!

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