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191af92d47
Committed on the Free edition of March Hare Software CVSNT Server. Upgrade to CVS Suite for more features and support: http://march-hare.com/cvsnt/ git-svn-id: http://moon:8086/svn/vhdl/trunk@790 cc03376c-175c-47c8-b038-4cd826a8556b
40 lines
724 B
C
40 lines
724 B
C
/* +++Date last modified: 05-Jul-1997 */
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/*
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** RAD2DEG.C - Functions to convert between radians and degrees
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*/
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#include <math.h>
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#include "snipmath.h"
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#undef rad2deg /* These are macros defined in PI.H */
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#undef deg2rad
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double rad2deg(double rad)
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{
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return (180.0 * rad / (PI));
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}
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double deg2rad(double deg)
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{
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return (PI * deg / 180.0);
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}
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#ifdef TEST
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#include <stdio.h>
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main()
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{
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double X;
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for (X = 0.0; X <= 360.0; X += 45.0)
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printf("%3.0f degrees = %.12f radians\n", X, deg2rad(X));
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puts("");
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for (X = 0.0; X <= (2 * PI + 1e-6); X += (PI / 6))
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printf("%.12f radians = %3.0f degrees\n", X, rad2deg(X));
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return 0;
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}
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#endif /* TEST */
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