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' vectors works fine : > > In [50]: a0 = numpy.array([1,2,3]) > In [51]: numpy.dot(a0,a0) > Out[51]: 14 > > What I don't understand, is why the dot product of a (3,N) vector gives an > error :
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-2a810f7dccd3f7c700d1076f15078ad1fe3c6d0d --bb _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion
