Multiplying 2 Matrices A and B from Scratch (not built in function
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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 ([])
1 个评论
dpb
2019-6-16
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...
回答（1 个）
Manvi Goel
2019-6-17
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
3 个评论
madhan ravi
2019-6-17
Providing a complete solution to a homework problem is totally not recommended in this forum.
Mark
2024-10-8
@madhan buzzkill
Walter Roberson
2024-10-8
It's okay in this case, because the provided code is incorrect.
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2019-6-16
2024-10-8
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