[Numpy-tickets] [NumPy] #622: function for computing the condition number

NumPy numpy-tickets@scipy....
Fri Nov 30 11:19:26 CST 2007


#622: function for computing the condition number
--------------------------+-------------------------------------------------
 Reporter:  LevGivon      |       Owner:  somebody       
     Type:  enhancement   |      Status:  new            
 Priority:  normal        |   Milestone:  1.0.5          
Component:  numpy.linalg  |     Version:  none           
 Severity:  normal        |    Keywords:  condition, norm
--------------------------+-------------------------------------------------
 Trivial suggested addition to numpy.linalg:


 {{{
 from numpy.linalg import norm,inv

 def cond(x,p=2):
     '''Compute the condition number of a matrix using
     the p-norm.'''

     return norm(x,p)*norm(inv(x),p)
 }}}

-- 
Ticket URL: <http://scipy.org/scipy/numpy/ticket/622>
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