8000 einsum documentation addition · Issue #8138 · numpy/numpy · GitHub
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einsum documentation addition #8138

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mattharrigan opened this issue Oct 11, 2016 · 1 comment
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einsum documentation addition #8138

mattharrigan opened this issue Oct 11, 2016 · 1 comment

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@mattharrigan
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I really like einsum, very powerful, fast, flexible, and easy to read once you get the hang of it. After reading the docs, I didn't know that you could leave subscripts empty for a scalar. Specifically, np.einsum(',ij', 3, c) is equivalent to np.einsum('..., ...', 3, c), which I thought was pretty neat and not otherwise obvious in the docs. Perhaps add that to the docs. Thank you
@shoyer
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shoyer commented Oct 11, 2016

A pull request to improve the docs would certainly be welcome. You can find the docstring in this file:

numpy/numpy/core/einsumfunc.py

Line 703 in 86c780d

def einsum(*operands, **kwargs):

@mattharrigan mattharrigan mentioned this issue Oct 14, 2016
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charris added a commit that referenced this issue Oct 14, 2016
@charris
Merge pull request #8156 from mattharrigan/einsum-doc
b8da06b 
DOC: added example with empty indices for a scalar, #8138
@charris charris closed this as completed Oct 14, 2016
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@charris @shoyer @mattharrigan
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