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[Octave-bug-tracker] [bug #57909] incorrect result for sparse matrix exp
From: |
Rik |
Subject: |
[Octave-bug-tracker] [bug #57909] incorrect result for sparse matrix exponentiation |
Date: |
Sat, 27 Jan 2024 19:43:38 -0500 (EST) |
Follow-up Comment #6, bug#57909 (group octave):
Not sure why this wasn't reviewed four years ago, but this is still a real
problem. Minimum example below.
octave:1> a = 0
a = 0
octave:2> b = 2
b = 2
octave:3> a .^ b
ans = 0
octave:4> as = sparse (a)
as = Compressed Column Sparse (rows = 1, cols = 1, nnz = 0 [0%])
octave:5> bs = sparse (b)
bs = Compressed Column Sparse (rows = 1, cols = 1, nnz = 1 [100%])
(1, 1) -> 2
octave:6> as .^ bs
ans = Compressed Column Sparse (rows = 1, cols = 1, nnz = 1 [100%])
(1, 1) -> 1
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