MATLAB: How to use ind2sub in this problem

ind2sub

A=1000*sin(reshape(10:999, 30, 33));
Use “max(A(:))” to find the index of the column vector which contains the maximum value, and then convert this vector index of A(:) back to the corresponding matrix index (i; j).you can use ind2sub if you wish.

Best Answer

you dont need to use ind2sub if you use max...
copied from doc max
[M,I] = max(...) finds the indices of the maximum values of A and returns them in output vector I, using any of the input arguments in the previous syntaxes. If the maximum value occurs more than once, then max returns the index corresponding to the first occurrence.
A=1000*sin(reshape(10:999, 30, 33));
[maxA,indexA]=max(A(:));
j=ceil(indexA/size(A,1));
i=mod(indexA,size(A,1));
if i==0
    i=size(A,1);
end
A(indexA)
A(i,j)
should be your desired maximum
or the boring solution:
[i,j] = ind2sub(size(A),indexA);
ind2sub uses modulo as well
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