[fpc-pascal] Calculating Pixels to represent 3D coordinates

James Richters james at productionautomation.net
Sat Sep 21 19:24:47 CEST 2019

Thanks for the Tip!  I had no idea there was a single function that would return both sine and cosine.

-----Original Message-----
From: fpc-pascal <fpc-pascal-bounces at lists.freepascal.org> On Behalf Of Jean SUZINEAU
Sent: Friday, September 20, 2019 8:01 PM
To: fpc-pascal at lists.freepascal.org
Subject: Re: [fpc-pascal] Calculating Pixels to represent 3D coordinates

Tip: if you need Sin(A) and Cos(A), it can be faster to make a single call to SinCos instead of two separated calls to Sin and Cos:


It was efficient 20 years ago when I was developing a sky map software, may be the gain is negligible today.

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