qwt_math.cpp

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/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
 * Qwt Widget Library
 * Copyright (C) 1997   Josef Wilgen
 * Copyright (C) 2002   Uwe Rathmann
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the Qwt License, Version 1.0
 *****************************************************************************/

#include "qwt_math.h"

double qwtGetMin( const double *array, int size )
{
    if ( size <= 0 )
        return 0.0;

    double rv = array[0];
    for ( int i = 1; i < size; i++ )
        rv = qMin( rv, array[i] );

    return rv;
}


double qwtGetMax( const double *array, int size )
{
    if ( size <= 0 )
        return 0.0;

    double rv = array[0];
    for ( int i = 1; i < size; i++ )
        rv = qMax( rv, array[i] );

    return rv;
}

double qwtNormalizeRadians( double radians )
{
    double a = ::fmod( radians, 2.0 * M_PI );
    if ( a < 0.0 )
        a += 2.0 * M_PI;

    return a;

}

double qwtNormalizeDegrees( double degrees )
{
    double a = ::fmod( degrees, 360.0 );
    if ( a < 0.0 )
        a += 360.0;

    return a;
}