need you help please please

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john hollywood
john hollywood on 23 Feb 2014
Commented: Sagar Damle on 25 Feb 2014
>> A=[1 2;3 4]; >> B=[9 8 7;6 5 4;3 2 1]; >> a=[11,12] >> b=[21;22]; >> c=[19 18 17]; >> d=[29;28;27];
i am stuck on these questions , i did the rest but really stuck on these question , i spend almost 4 hours playing around with different ways, but can't get the right answer. any help will be much appreciated. Thank you soo much

Answers (2)

Mischa Kim
Mischa Kim on 23 Feb 2014
Edited: Mischa Kim on 23 Feb 2014
John, for the first one, use
ans1 = [a b'; d B]
it's simply putting together vectors and matrices in the correct order. To get the 1's in the second example, you could use A(1,1), four times. And so on and so forth...
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Sagar Damle
Sagar Damle on 25 Feb 2014
I think we are allowed to use scalars as indices but not as extra data.
John,where did you get these questions(from which book)?If they are in a book,are they in 'Exercise' of a chapter?What are the contents of that chapter?(This will help us to narrow our thinking,because exercise of a chapter contains problems related to that chapter.)
Can we use rem(input_matrix,2) to get output in terms of 0's and 1's only?

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john hollywood
john hollywood on 24 Feb 2014
for 'part F' i just don't how put number "29" in there. also for 'Part G', i just don't know how to put matrix A in that diagonal form.i did try switch rows and columns and also tried transpos but nothing seems to work. i used diag(diag(A')) But its not working. Thank you soo much

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