[Numpy-discussion] numpy.dot gives wrong results with floats?

Paulo Jose da Silva e Silva pjssilva at ime.usp.br
Wed Mar 1 05:10:09 CST 2006


Em Qua, 2006-03-01 às 01:05 -0800, Zachary Pincus escreveu:


> In [4]: numpy.dot([[5.]],[[1,1,1]]) # 2D float case: what???
> Out[4]: array([[  5.00000000e+000,   4.46601253e-316,    
> 5.42111867e-306]])

It seems fixed in the repository

In [1]:import numpy

In [2]:numpy.dot([[5]],[[1,1,1]]) # 2D int case OK
Out[2]:array([[5, 5, 5]])

In [3]:numpy.dot([[5.]],[[1,1,1]]) # 2D float case: what???
Out[3]:array([[ 5.,  5.,  5.]])

In [4]:numpy.version.version
Out[4]:'0.9.6.2179'

Best,

Paulo





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