matrix multiplication (newbie question)

Bill Baxter wbaxter at gmail.com
Wed Nov 8 17:39:07 CST 2006


Also have a look at the section on Arrays vs Matrices in the Numpy for
Matlab users page.  That particular section has nothing to do with
Matlab, really.
http://www.scipy.org/NumPy_for_Matlab_Users
Most of the suggestions and comments made here are already on that page.

--bb

On 11/8/06, Joris De Ridder <joris at ster.kuleuven.be> wrote:
>
>    [im]: Sorry if this is an obvious question, but what is the easiest way to multiply matrices in numpy? Suppose I want to do A=B*C*D. The ' * ' operator apparently does element wise multiplication, as does the 'multiply' ufunc.
>    [im] All I could find was the numeric function 'matrix_multiply, but this only takes two arguments.
>
> Have a look at the examples "dot()" and "mat()" in the Numpy Example List.
> http://www.scipy.org/Numpy_Example_List
>
> J.
>
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