Hi,
>>> a=N.random.poisson(N.arange(1e6)+1)
>>> U.timeIt('a**2')
0.59
>>> U.timeIt('a*a')
0.01
>>> a.dtype
int32my U.timeIt function just returns the difference of time in seconds before and after evaluation of the string. For >>> c=N.random.normal(1000, 100, 1e6) >>> c.dtype float64 i get .014 seconds for either c*c or c**2 (I averaged over 100 runs). After converting this to float32 I get 0.008 secs for both. Can the int32 case be speed up the same way !? Thanks, Sebastian Haase ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Numpy-discussion mailing list Numpy-discussion@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/numpy-discussion
