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Results tagged with matrix
Search options questions only
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user 1923
Questions on the manipulation of matrices in Mathematica.
7
votes
1
answer
647
views
Sporadic numerical convergence failure of SingularValueDecomposition (message "SingularValue...
The file is rather large (about 7.7 MBytes) because it encodes a convergence-failing 320x320 complex matrix as an integer byte-array of dimension 320x320x16. … Update On Mar 11, 2016, near-identical symptoms (namely, SVD convergence-failure) were reported on GitHub's "Anaconda-Issues" forum as "BUG: LinAlgError raised by scipy.linalg.svd for valid matrix #695 …
- 835
11
votes
1
answer
252
views
Sporadic bugs in multidimensional SparseArray objects
Bug introduced in 9.0 and fixed in 10.0
Update
This SparseArray[] bug is (apparently) fixed on version 10.0
$System//Print;
$Version//Print;
Mac OS X x86 (64-bit)
10.0 for Mac OS X x86 (64-bit) …
- 835
31
votes
5
answers
2k
views
Can (compiled) matrix permanent evaluation be further sped-up?
) matrix permanent? … The
algorithm requires O(m^2 2^m) operations, where m is the dimension
of the matrix arg. …
- 835