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From: | Martin Ambuhl <mambuhl AT earthlink DOT net> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: Trig |
Date: | Sat, 01 May 1999 12:39:42 -0400 |
References: | <7gf98i$bc8 AT journal DOT concentric DOT net> |
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X-ELN-Date: | 1 May 1999 16:38:39 GMT |
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Organization: | Nocturnal Aviation |
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To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
Paradox wrote: > > How do I use Trig to determine the reverse slope of an object traveling at n > degrees? And vise versia? > > Paradox Since you are using gcc, <math.h> will provide M_PI, as long as you are not compiling in ANSI mode. This allows you to convert an angle from degrees into radian measure: #define radians(a) )(a)*(M_PI/180.)) The slope (dy/dx) is just tan(radians(angle)). This is extremely simple math and should be learned before attempting such programming. -- Martin Ambuhl (mambuhl AT earthlink DOT net) Note: mambuhl AT tiac DOT net will soon be inactive
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