OT : Approximate / fast math libraries ?
Mogens Kjaer
mk at crc.dk
Sat Sep 1 08:36:02 UTC 2007
Chris Jones wrote:
...
> for the profiler output. atan2 is taking 50% of the time of this method. Not
> here I don't need that much precision on the result - say +- O(2*pi/100).
>
Can't you use a Taylor expansion of arctan?
Mogens
--
Mogens Kjaer, Carlsberg A/S, Computer Department
Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark
Phone: +45 33 27 53 25, Fax: +45 33 27 47 08
Email: mk at crc.dk Homepage: http://www.crc.dk
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