On 11/7/2009 1:51 PM, Stas K wrote: > Can I get rid of the loop in this example? And what is the fastest way > to get v in the example? > > ar = array([1,2,3]) > for a in ar: > for b in ar: > v = a**2+b**2
>>> a2 = a*a
>>> np.add.outer(a2,a2)
array([[ 2, 5, 10],
[ 5, 8, 13],
[10, 13, 18]])
hth,
Alan Isaac
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