[Numpy-discussion] Matrix vs ndarray

Bill Baxter wbaxter@gmail....
Thu Apr 17 14:14:03 CDT 2008


You might find out a lot from reading through this page:
http://www.scipy.org/NumPy_for_Matlab_Users

What I think that doesn't say is why the two classes are needed in
NumPy.  Basically, the reason for that is that Matlab has .* and *
which mean different things, but  Python only has the one * operator.
Some people think that should mean .*,  some want it to mean *.  So
NumPy offers two different classes with different behavior instead of
two different operators.

--bb

On Fri, Apr 18, 2008 at 4:02 AM, Santanu Chatterjee
<santanu.chatter@gmail.com> wrote:
> Hi Numpy users,
>     I used MATLAB to do numerical calculations for a long time. Recently I
> am digging into python and numpy. I am wondering about the following
> question :
>
> 1) What is the difference between ndarray and matrix in numpy? My idea is
> that having N-dimensional array is sufficient (of course a MATLAB users
> point of view). If anyone can provide some idea, I will appreciate it.
>
> Thanks & regards,
> Santanu
>
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