On Wed, Feb 27, 2013 at 5:41 AM, Jorge Scandaliaris <jorgesmbox-ml@yahoo.es> wrote:

Jorge Scandaliaris <jorgesmbox-ml <at> yahoo.es> writes:

> I have an ndarray A of shape (M,2,2) representing M 2 x 2 matrices.
> Now I want to apply a transform T of shape (2,2) to each of matrix.

np.einsum makes a lot of these easier to figure out:

In [7]: np.einsum('ijk, kl', A, T)

Out[7]:

array([[[ 7, 10],

[15, 22]],

[[23, 34],

[31, 46]],

[[39, 58],

[47, 70]]])

Jaime

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