[Numpy-discussion] Slicing slower than matrix multiplication?
Wed Dec 16 11:15:18 CST 2009
A general question, is there a collection of numpy code snippets as transformed by experts,
short of google site:mail.scipy.org/pipermail/numpy-discussion or the like ?
And a subquestion, does anyone have a list of algebraic identities for .T vstack etc ?
for a real example, to transform
dots = np.vstack([ dot( x[j:j+4] .T, imatrix ) .T for j in ...])
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