[Numpy-discussion] multiply a lign matrix with a column matrix should return a scalar( matlab yes, numpy no)!!!
Alan G Isaac
aisaac@american....
Wed Feb 3 08:36:07 CST 2010
On 2/3/2010 3:08 AM, laurent.feron@free.fr wrote:
> if i multiply two matrix, one with a unique line and the second one
> with a unique column, i should have a scalar
What definition of matrix multiplication is that??
If you really want a scalar product,
ask for it::
>>> import numpy as np
>>> m1 = np.mat('0 1 2')
>>> m2 = m1.T
>>> np.dot(m1.flat,m2.flat)
5
Alan Isaac
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