[Numpy-discussion] dot function or dot notation, matrices, arrays?

Wayne Watson sierra_mtnview@sbcglobal....
Fri Dec 18 17:22:26 CST 2009


Very good.
Is there a scalar product in numpy?

Keith Goodman wrote:
> On Fri, Dec 18, 2009 at 2:51 PM, Wayne Watson
> <sierra_mtnview@sbcglobal.net> wrote:
>   
>> That should do it. Thanks. How do I get the scalar result by itself?
>>     
>
>   
>>> np.dot(x.T,x)[0,0]
>>>       
>    14
>
> or
>
>   
>>> x = np.array([1,2,3])
>>> np.dot(x,x)
>>>       
>    14
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>   

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