MATLAB help needed Question 48 is the problem Write your own code to perform mat

Question

MATLAB help needed

Question 48 is the problem

Write your own code to perform matrix multiplication. Do not use any vectorizing -- use nested for loops. Details are provided in the problem statement in the text.

function [C]=mymatmult(A,B)
% mymatmult - multiplies two matrices, with looping

Play List: CD 2 Track 20 CD 3 Track 11 CD 3 Track 8 CD 2 Track 1 CD 1 Track 7 CD 3 Track 8 CD 1 Track 3 CD 1 Track 15 CD 3 Track 12 CD 1 Track 6 Sorry, your favorite track was not played. 48. Write your own code to perform matrix multiplication. Recall that to multiply two matrices, the inner dimensions must be the same [Alm, x m X p Every element in the resulting matrix c is obtained by: So, three nested loops are required.

Explanation / Answer

%This script demonstrates matrix multiplication

A=[3 8 0; 1 2 5];

B=[1 3 2 4; 4 5 1 2; 0 2 3 4];

[m n]=size(A);

[nb p]=size(B);

If n~=nb

        disp(‘Cannot perform this matrix multiplication’)

else

         C=zeros(m,p);

         for i=l:m

            for j=l:p

               mysum=0;

                  for k=l:n

                         mysum=mysum + A(i.k) * B(k,j);

                  end

                  C(i , j)= mysum;

              end

            end

          C

end

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