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48 lines
1.5 KiB
48 lines
1.5 KiB
/*
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**************************************************************************
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description
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--------------------
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copyright : (C) 2000-2001 by Andreas Zehender
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email : zehender@kde.org
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**************************************************************************
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**************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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**************************************************************************/
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#ifndef PMMATH_H
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#define PMMATH_H
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/**
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* Same as ( fabs( v1 - v2 ) < epsilon )
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*/
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bool approx( double v1, double v2, double epsilon = 1e-6 );
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/**
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* Same as ( fabs( v ) < epsilon )
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*/
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bool approxZero( double v, double epsilon = 1e-6 );
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/**
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* Converts rad to deg
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*/
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double rad2Deg( double rad );
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/**
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* Converts deg to rad
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*/
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double deg2Rad( double deg );
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/**
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* Returns the atan( s / c ) with all special cases
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*/
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double pmatan( double s, double c );
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/**
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* Returns x^y. y has to be >= 0
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*/
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int pmpot( int x, int y );
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#endif
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