On Sat, Dec 19, 2009 at 4:53 AM, Chris Colbert <sccolbert@gmail.com> wrote:


On Sat, Dec 19, 2009 at 6:43 AM, Charles R Harris <charlesr.harris@gmail.com> wrote:


On Fri, Dec 18, 2009 at 10:20 PM, Wayne Watson <sierra_mtnview@sbcglobal.net> wrote:
This program gives me the message following it:
================Program==========
import numpy as np
from numpy import matrix
import math


You don't want math.


Why do you say that? The builtins are MUCH faster than numpy for single values:

In [1]: import math

In [2]: import numpy as np

In [3]: %timeit np.sin(1.57)
100000 loops, best of 3: 2.41 us per loop

In [4]: %timeit math.sin(1.57)
10000000 loops, best of 3: 165 ns per loop

In [6]: %timeit np.array([np.sin(1.57)])
100000 loops, best of 3: 11.5 us per loop

In [7]: %timeit np.array([math.sin(1.57)])
100000 loops, best of 3: 7.01 us per loop

 

Fair point. I was thinking of the vector case down the road.

Chuck