[SciPy-user] switch columns
Alan G Isaac
aisaac at american.edu
Fri Nov 26 18:26:00 CST 2004
On Fri, 26 Nov 2004, Robert Kern apparently wrote:
> When A is a Numeric array, slicing it produces a view on that slice of
> the array rather than producing a copy.
> Apparently (I don't use the mat object, so I'm no authority here),
> slicing a mat object yields a copy, not a view.
>From chapter 11 of the Numeric documentation:
The Matrix.py python module defines a class Matrix which
is a subclass of UserArray. The only differences between
Matrix instances and UserArray instances is that the *
operator on Matrix performs a matrix multiplication, as
opposed to element-wise multiplication, and that the
power operator ** is disallowed for Matrix instances.
So, this documentation is radically wrong, right?
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