MATLAB: Generating a matrix question

columncommandmatrixrow

i want to generate a matrix that each element is the sum of its row and column ive tried usin the henkel command but it didnt work is there an alternative or more simple solution thx

Best Answer

A=zeros(3,4);
[ii,jj]=ind2sub(size(A),1:numel(A));
A(1:end)=sum([ii' jj'],2)

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MATLAB: Ind2sub output in arrayform

A=randi(5,5,4,3)
id=[1 12 25 45]'
idx=cell(ndims(A),1)
[idx{:}]=ind2sub(size(A),id)
celldisp(idx)

MATLAB: Index exceeds matrix dimensions problem with this code below :-

c =[1 1 1 6; 2 4 2 16; -1  5  -4 -3]
    N = size(c,1)
    M=size(c,2)
 tol= 1e-6;
 for ii=1:M-1
     ii
    for jj=ii+1:N
        jj
       if abs(c(jj,ii))> tol 
          fac=c(ii,ii) / c(jj,ii);
          c(jj,:) = fac*c(jj,:) - c(ii,:);
       end
    end
 end

Instead of writing length(c), you should to define the size along first and second dimension of matrix, i.e. define the number of row and columns of matrix.

Best Answer

Related Solutions

MATLAB: Ind2sub output in arrayform

MATLAB: Index exceeds matrix dimensions problem with this code below :-

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