Hello, I am trying to write some unit tests to my new "Automatic matrix" code and I think I bumped into a bug in scipy.linalg.lu_factor. If you give a matrix to it, it doesn't honor the overwrite_a option:
In [1]:import numpy as num In [2]:M = num.mat(num.random.rand(2,2)) In [3]:print M [[ 0.33267781 0.2100424 ] [ 0.61852696 0.32244386]] In [4]:import scipy.linalg as la In [5]:LU, P = la.lu_factor(M, overwrite_a=0); print M [[ 0.33267781 0.63136882] [ 0.61852696 -0.06807478]] In [6]:LU, P = la.lu_factor(M, overwrite_a=0); print M [[ 0.63136882 0.52691517] [-0.06807478 0.6543966 ]] As you can see the matrix is changed by calling the function. can anyone confirm this? I am running numpy 1.0.1 and scipy 0.5.2. Best, Paulo _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion
