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pi (3.14...)

General and Gameplay Programming Programming

Started by programmerml August 22, 2005 09:32 AM

3 comments, last by flangazor 18 years, 7 months ago

programmerml

122

Author

August 22, 2005 09:32 AM

How do I get the value of pi in c++ fast and efficiently? Is there a built in variable for it? Thanks.

e-u-l-o-g-y

196

August 22, 2005 09:35 AM

just define your own variables :)

const double pi = 3.1415926535897932384626433832795;
const double pi2 = 6.283185307179586476925286766559;

my-eulogy - A blog about coding and gfxsdgi - Semi-Daily Game IdeaChunkyHacker - Viewer for Relic chunky formats (used in DOW)

pinacolada

834

August 22, 2005 09:38 AM

M_PI should be defined in Math.h

blizzard999

268

August 22, 2005 09:41 AM

Quote:Original post by e-u-l-o-g-y
just define your own variables :)

const double pi = 3.1415926535897932384626433832795;
const double pi2 = 6.283185307179586476925286766559;

[smile]

also

static const double pi = 4 * atan ( 1 );

flangazor

516

August 22, 2005 09:49 AM

2.0*acos(0)

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pi (3.14...)

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