Random number generator for matrix

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N/A 2022-7-29
评论： Abderrahim. B 2022-7-30
My goal is to create a random number generator for a matrix of size 3x3, for n matrices (meaning as many n matrices as I designate) that will produce random numbers within the bounds [a,b] for the main diagonal of the matrix (elements 11, 22 and 33 in the matrix).
I invision the random generator, as described above, to generate a sample of something like:
matrix 1:
[2, 0, 0;
0, 90, 0;
0 , 0 ,1]
matrix 2:
[3, 0, 0;
0, 12, 0;
0 , 0 ,63]
matrix 3:..
matrix n
I appreciate any and all help with this.

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Abderrahim. B
Abderrahim. B 2022-7-29
编辑：Abderrahim. B 2022-7-29
Ran in:
Hi!
Perhaps this:
bounds = [10 20] ; % [a b ]
randA = diag(diag(randi(bounds, 3,3)))
randA = 3×3
13 0 0 0 13 0 0 0 19
Hope this helps
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N/A 2022-7-29
Appreciate your help (and genius) greatly.
Matthew

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