Date: Thu, 20 Jan 2005 19:46:55 +0000
From: rick <email@hidden>
Subject: Re: Fast atan2
To: email@hidden
Message-ID: <email@hidden>
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http://www.dspguru.com/comp.dsp/tricks/alg/fxdatan2.htm
On 18 Jan 2005, at 23:56, Robert Purves wrote:
Shark indicates that an important bottleneck in my app is
angle = atan2( y, x );
Does anyone know of a fast approximate atan2 algorithm (like those
delightfully sleazy hacks for sqrt and its reciprocal)?
I don't need anything like full double, or even single, precision. An
absolute error of 1e-4 would be acceptable.
Robert P.
r i c k
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