[Numpy-discussion] Re: Numpy-discussion digest, Vol 1 #366 - 7 msgs

Greg Kochanski gpk at bell-labs.com
Tue Dec 11 12:54:03 CST 2001


Spacesaver doesn't propagate through matrix multiplies:

>>> import Numeric
>>> x=Numeric.zeros((3,3), Numeric.Float32)
>>> x.savespace(1)
>>> x
array([[ 0.,  0.,  0.],
       [ 0.,  0.,  0.],
       [ 0.,  0.,  0.]],'f')
>>> x.spacesaver()
1
>>> y = Numeric.matrixmultiply(x, x)
>>> y 
array([[ 0.,  0.,  0.],
       [ 0.,  0.,  0.],
       [ 0.,  0.,  0.]],'f')
>>> y.spacesaver()
0




More information about the Numpy-discussion mailing list