Numpy , matrix inverse & multiply crashes python

[dazzler]

Hi! I have problem with numpy, multiplying with an inversed matrix will crash python :(


this works fine:

from numpy import matrix
 
A = matrix([[3,4],[5,2]])
B = matrix([[11],[9]])
print A.I   #inverse matrix
print A*B
 

but this will crash python:

A.I * B
 

(using win xp)

[bvdet]

Hi! I have problem with numpy, multiplying with an inversed matrix will crash python :(


this works fine:

from numpy import matrix
 
A = matrix([[3,4],[5,2]])
B = matrix([[11],[9]])
print A.I   #inverse matrix
print A*B
 

but this will crash python:

A.I * B
 

(using win xp)

I am in Python 2.3, also XP.

>>> import numpy
>>> A = numpy.matrix([[3,4],[5,2]])
>>> B = numpy.matrix([[11],[9]])
>>> A.I
matrix([[-0.14285714,  0.28571429],
        [ 0.35714286, -0.21428571]])
>>> B
matrix([[11],
        [ 9]])
>>> A*B
matrix([[69],
        [73]])
>>> A.I*B
matrix([[ 1.],
        [ 2.]])
>>>