Tue, 20 Dec 2005 19:32:13 +0530 skrev Suresh Jeevanandam: > Hi all, > Lets say I have an array: > from numarray import * > a = array([ 6, 7, 8, 9, 10, 11, 12]) > > I want to multiply out all the elements and get the result. > > r = 1.0 > for i in a: > r = r*i > > Is there any faster, efficient way of doing this.
You can use multiply.reduce(a) (multiply is a function imported from numarray). With regular python you can also do: from operator import mul reduce(mul,a) This work even when 'a' is a plain python list. -- Mandus - the only mandus around. -- http://mail.python.org/mailman/listinfo/python-list
