Fernando Perez wrote: > [EMAIL PROTECTED] wrote: > > > Suppose I have a list of n floats x and a list of n floats w and I want > > to compute x[0]*w[0] + .. + x[n-1]*w[n-1]. > > > > Is there some elegant expression (perhaps using lambda) to have it done > > in one statement ? As in : > > y = lambda x,w : ... > > > > I ask because the way I am doing it now : > > y = 0 > > for i in range(0,n): y += x[i]*w[i] > > > > doesn't seem very pythonic :) > > > > Thanks, > > Andrei > > > > import Numeric > print Numeric.dot(x,w)
Indeed. Horses for courses. Anyway, people who reinvent the wheel often fall to arguing among themselves whose polygon is the best approximation to a circle, and forget to reinvent the axle. Wouldn't happen in this newsgroup, of course :-) -- http://mail.python.org/mailman/listinfo/python-list
