numarray :: multiplying all the elements in 1d array
mandus at gmail.com
Tue Dec 20 15:46:36 CET 2005
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
With regular python you can also do:
from operator import mul
This work even when 'a' is a plain python list.
Mandus - the only mandus around.
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