How to Multiplying matrices using for loops
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I have to write a MATLAB code using for-loops to perform multiplication of both matrices. Not sure how to do this using for loops but A = [3 4 1; 1 2 3] B = [1 2 3; 4 5 6; 7 8 9] Need to Find A*B
Thanks everyone!
回答（1 个）
Walter Roberson
2016-9-16
0 个投票
A.*B is not defined between matrices of difference sizes. It is not possible to write code for it.
The .* (otherwise known as times) operator is for element-by-element multiplication. If you are looking for algebraic matrix multiplication then the operator to read about is * (otherwise known as mtimes)
2 个评论
Mark Hodges
2016-9-16
Walter Roberson
2016-9-16
https://en.wikipedia.org/wiki/Matrix_multiplication#General_definition_of_the_matrix_product
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2016-9-16
2016-9-16
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