[Numpy-discussion] Matrix products
Curzio Basso
curzio.basso at unibas.ch
Tue Jan 25 05:12:03 EST 2005
Hi all,
assume that I have a matrix A with shape = (m,n), what I would like to
compute is a matrix B with shape = (m, n, n) such as
B[i] = NA.matrixmultiply(A[i, :, NA.NewAxis], A[i, NA.NewAxis])
e.g. if A is
array([[0, 1],
[2, 3]])
then B would be
array([[[0, 0],
[0, 1]],
[[4, 6],
[6, 9]]])
Does anyone know how to do this without using loops?
thanks
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