Multiplying 2 Matrices A and B from Scratch (not built in function

How can i write a matlab function which accepts two Matrices A and B and from scratch(indexing - not built in functions) multiplies them together. in the case that they can not be multiplied together simply return an empty matrix ([])

[dpb]

Obviously homework...show your work to date and where, specifically, you got stuck on a Matlab-related question.

Of course, you start with the definition of what matrix multiplication is...

Answer 1

[Manvi Goel]

Here you go

function result =  mult(a, b)
    [r1, c1] = size(a);
    [r2, c2] = size(b); 
    if( c1 == r2)
        result = zeros(r1, c2);
        for i  = 1: r1
           for j =1:c2
              for k = 1:r2
                  result(i,j) = result(i,j) + a(i,k) * b(k,j);
              end
           end
        end
    else
        result = [];
    end
    disp(result)
end

[madhan ravi]

Providing a complete solution to a homework problem is totally not recommended in this forum.

[Mark]

@madhan buzzkill

[Walter Roberson]

It's okay in this case, because the provided code is incorrect.