Status: Valid
Owner: ----
Labels: Type-Defect Priority-Medium Matrices EasyToFix
New issue 3656 by [email protected]: Fancy indexing in Matrix
http://code.google.com/p/sympy/issues/detail?id=3656
I want to be able to index matrices with an iterator. E.g.
In [1]: X = Matrix(3, 3, range(9))
In [2]: X
Out[2]:
⎡0 1 2⎤
⎢ ⎥
⎢3 4 5⎥
⎢ ⎥
⎣6 7 8⎦
In [3]: X[[0,2], :]
⎡0 1 2⎤
⎢ ⎥
⎣6 7 8⎦
I suppose the relevant function are
sympy/matrices/dense.py:DenseMatrix.__getitem__()
and
sympy/matrices/sparse.py:SparseMatrix.__getitem__()
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