Matrix multiplication: Difference between revisions
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Using list comprehensions, multiplying matrices represented as lists of lists. (Input is not validated): |
Using list comprehensions, multiplying matrices represented as lists of lists. (Input is not validated): |
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<lang python>def mm(A, B): |
<lang python>def mm(A, B): |
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return [[sum( |
return [[sum(x * B[i][col] for i,x in enumerate(row)) for col in range(len(B[0]))] for row in A]</lang> |
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Another one, use numpy the most popular array package for python |
Another one, use numpy the most popular array package for python |
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