[SciPy-dev] KeyError: ('d', 'l')

Nils Wagner nwagner at mecha.uni-stuttgart.de
Sat Mar 4 11:42:48 CST 2006


     x0,info = linalg.cgs(A,r)
   File 
"/usr/local/lib/python2.4/site-packages/scipy/linalg/iterative.py", 
line 465, in cgs
     typ = _coerce_rules[b.dtype.char,atyp]
KeyError: ('d', 'l')
>>> A
array([[1, 0, 0, 0],
        [0, 1, 0, 0],
        [0, 0, 1, 0],
        [0, 0, 0, 1]])
>>> r
array([ 0.61542588,  0.53775049,  0.29953529, 
 0.50247666])
>>> type(A)
<type 'numpy.ndarray'>

A is defined as
A = identity(4)




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