[SciPy-dev] An addition to basic.py

Nils Wagner nwagner at mecha.uni-stuttgart.de
Wed Apr 20 12:53:05 CDT 2005


On Wed, 20 Apr 2005 13:21:40 -0400 (Eastern Daylight Time)
  Alan G Isaac <aisaac at american.edu> wrote:
> 1. I prefer the solution you can find in pyGAUSS:
> def vec(x): return transpose([ravel(transpose(x))])
> def vecr(x): return transpose([ravel(x)])
> In particular, I prefer to get back a 2-D array.
> 2. I suppose someone familiar with tensors should
> address the proper generalization beyond 2-D inputs.
> 
> fwiw,
> Alan Isaac
> 
> 
Just a suggestion. And how about the reverse ?

a = rand(3,3)
b = vec(a)
a = transpose(reshape(a,(3,3))) # not the best way

Nils

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