On Tue, 03 Nov 2009 22:43:45 -0600, Robert Kern wrote: > Steven D'Aprano wrote: >> On Tue, 03 Nov 2009 10:22:28 -0500, J Kenneth King wrote: > >>> Adding in the loop construct and name bindings doesn't enhance my >>> understanding of what a dot-product is. I don't need to see the loop >>> construct at all in this case. A dot product is simply the >>> multiplication of each element in a vector sequence. >> >> What you need is to define a function dot-product, and not hijack the >> name for a local value. Then the function's implementation is >> irrelevant to you: it could use a list comp, or could use map, it could >> use a for- loop, a while loop, recursion, or black magic: >> >> scalar = dot_product(vec1, vec2) > > Or use the appropriate libraries: > > from numpy import dot > > scalar = dot(vec1, vec2)
Why would I want to use an already existing library that is fast, well- written and well-supported, when I can toss together a nasty kludge myself? -- Steven -- http://mail.python.org/mailman/listinfo/python-list
