[SciPy-user] Most Basic of Matrix

quendor at nandor.net quendor at nandor.net
Sat Sep 25 09:22:14 CDT 2004

I forgive in advance what will probably be the lamest of questions. I  
am new to scipy. I can select an element of a matrix, but  seem unable  
to change the element. Am I using the wrong API?

When I run the following code:

from scipy import *

A = mat([[1,2],[3,4]])
print A[1,1]
A[1,1] = 100

I get the following output:

Traceback (most recent call last):
   File "./test.py", line 6, in ?
     A[1,1] = 100
ic/Matrix.py", line 183, in __setitem__
     value = value[0,0]
IndexError: invalid index 

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