Your first version of this post, with code I could actually copy and run, was preferable. I edited it with the [{}Code] button so the code showed clearly, something you can easily do.
Please do not use screencaps of code! Nobody wants to type it in, and that’s what we have to do in that situation.
The essence (with my edit), copied from the previous correct version:
A=[1,1,1;3,3,3];
B=[2,2;5,5;7,7];
[m,n]=size(A);%Determines dimensions of A
[p,q]=size(B);%Determines dimensions of B
if (p==n) %Check the dimensions of the matrix to determine if its possible
C=zeros(m,q) %Creates a matrix, C, to be filled, initially zeros.
for i=1:m;
C(i,:)=A(i,:)*B %Computes every row of A times matrix B
end
else disp('dimensions do not match') %Dimesions do not match message
C=[];
end
