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author | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
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committer | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
commit | 47d455dd55be855e4cc691c32f687f723d9247ee (patch) | |
tree | 52e236aaa2576bdb3840ebede26619692fed6d7d /kpovmodeler/pmmath.h | |
download | tdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.tar.gz tdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.zip |
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'kpovmodeler/pmmath.h')
-rw-r--r-- | kpovmodeler/pmmath.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/kpovmodeler/pmmath.h b/kpovmodeler/pmmath.h new file mode 100644 index 00000000..520b8b6d --- /dev/null +++ b/kpovmodeler/pmmath.h @@ -0,0 +1,48 @@ +//-*-C++-*- +/* +************************************************************************** + description + -------------------- + copyright : (C) 2000-2001 by Andreas Zehender + email : zehender@kde.org +************************************************************************** + +************************************************************************** +* * +* This program is free software; you can redistribute it and/or modify * +* it under the terms of the GNU General Public License as published by * +* the Free Software Foundation; either version 2 of the License, or * +* (at your option) any later version. * +* * +**************************************************************************/ + + +#ifndef PMMATH_H +#define PMMATH_H + +/** + * Same as ( fabs( v1 - v2 ) < epsilon ) + */ +bool approx( double v1, double v2, double epsilon = 1e-6 ); +/** + * Same as ( fabs( v ) < epsilon ) + */ +bool approxZero( double v, double epsilon = 1e-6 ); +/** + * Converts rad to deg + */ +double rad2Deg( double rad ); +/** + * Converts deg to rad + */ +double deg2Rad( double deg ); +/** + * Returns the atan( s / c ) with all special cases + */ +double pmatan( double s, double c ); +/** + * Returns x^y. y has to be >= 0 + */ +int pmpot( int x, int y ); + +#endif |