Yet another "simple" headscratcher

[wxjmfauth at gmail.com]

>>> # from my lib
>>> def NewMat(nr, nc, val=0.0):
...     val = float(val)
...     return [[val] * nc for i in range(nr)]
...     
>>> import vmio6
>>> aa = NewMat(2, 3)
>>> vmio6.pr(aa)
(   0.00000e+000  0.00000e+000  0.00000e+000 )
(   0.00000e+000  0.00000e+000  0.00000e+000 )
>>> aa[0][0] = 3.1416
>>> vmio6.pr(aa)
(   3.14160e+000  0.00000e+000  0.00000e+000 )
(   0.00000e+000  0.00000e+000  0.00000e+000 )
>>> aa[1][1] = 1.2345
>>> vmio6.pr(aa)
(   3.14160e+000  0.00000e+000  0.00000e+000 )
(   0.00000e+000  1.23450e+000  0.00000e+000 )
>>>

jmf