Re: [Numpy-discussion] A basic question on the dot function

2007-10-17 Thread Matthieu Brucher
> > what I'm searching for is : > > In [18]: dotprod2(a,b) > Out[18]: array([ 0.28354876, 0.54474092, 0.22986942, 0.42822669, > 0.98179793]) > > where I defined a "classical" (in the way I understand it. I may not > understand it properly ?) dot product between these 2 vectors. > > def dotprod2(

Re: [Numpy-discussion] A basic question on the dot function

2007-10-17 Thread Julien Hillairet
2007/10/16, Timothy Hochberg <[EMAIL PROTECTED]>: > > > You might try tensordot. Without thinking it through too much: > numpy.tensordot(a0, a1, axes=[-1,-1]) > seems to do what you want. > > Thank you. However, it works only for this simple example, where a0 and a1 are similar. The tensor product

Re: [Numpy-discussion] A basic question on the dot function

2007-10-16 Thread Timothy Hochberg
On 10/16/07, Julien Hillairet <[EMAIL PROTECTED]> wrote: > > 2007/10/16, Bill Baxter <[EMAIL PROTECTED]>: > > > > dot() also serves as Numpy's matrix multiply function. So it's trying > > to interpret that as a (3,N) matrix times a (3,N) matrix. > > > > See examples here: > > > > http://www.scipy.

Re: [Numpy-discussion] A basic question on the dot function

2007-10-16 Thread Julien Hillairet
2007/10/16, Bill Baxter <[EMAIL PROTECTED]>: > > dot() also serves as Numpy's matrix multiply function. So it's trying > to interpret that as a (3,N) matrix times a (3,N) matrix. > > See examples here: > > http://www.scipy.org/Numpy_Example_List_With_Doc#head-2a810f7dccd3f7c700d1076f15078ad1fe3c6d

Re: [Numpy-discussion] A basic question on the dot function

2007-10-16 Thread Robert Kern
Julien Hillairet wrote: > Hello, > > > First of all, I'm sorry if this question had already been asked. I've > searched on the gmane archive and elsewhere on internet, but I didn't > found the answer to my question. > > As expected, the dot product of 2 'classical' vectors works fine : > > In [

Re: [Numpy-discussion] A basic question on the dot function

2007-10-16 Thread Charles R Harris
On 10/16/07, Julien Hillairet <[EMAIL PROTECTED]> wrote: > > Hello, > > > First of all, I'm sorry if this question had already been asked. I've > searched on the gmane archive and elsewhere on internet, but I didn't found > the answer to my question. > > As expected, the dot product of 2 'classical

Re: [Numpy-discussion] A basic question on the dot function

2007-10-16 Thread Bill Baxter
On 10/17/07, Julien Hillairet <[EMAIL PROTECTED]> wrote: > Hello, > > > First of all, I'm sorry if this question had already been asked. I've > searched on the gmane archive and elsewhere on internet, but I didn't found > the answer to my question. > > As expected, the dot product of 2 'classical'

[Numpy-discussion] A basic question on the dot function

2007-10-16 Thread Julien Hillairet
Hello, First of all, I'm sorry if this question had already been asked. I've searched on the gmane archive and elsewhere on internet, but I didn't found the answer to my question. As expected, the dot product of 2 'classical' vectors works fine : In [50]: a0 = numpy.array([1,2,3]) In [51]: nump