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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 |