Yksinkertaisia matemaattisia apuneuvoja automaatiotekniikkaan

#ifndef SRMATH_H
#define SRMATH_H
#include <QObject>

class Srmath : public QObject
{
    Q_OBJECT
public:
    explicit Srmath(QObject *parent = 0);
    double Abs(double in){if(in<0.0)return in*(-1.0); else return in;}
    qint8 Abs(qint8 in){if(in<0)return in*(-1); else return in;}
    qint16 Abs(qint16 in){if(in<0)return in*(-1); else return in;}
    qint32 Abs(qint32 in){if(in<0)return in*(-1); else return in;}
    qint8 isPositive(qint8 in){if(in<0)return -1; else return 1;}
    qint16 isPositive(qint16 in){if(in<0)return (-1); else return 1;}
    qint32 isPositive(qint32 in){if(in<0)return (-1); else return 1;}
    double Saturate(double in,double limit);
    bool AbsSmaller(double input,double limit;
    bool AbsLarger(double input,double limit);
    bool AbsLargerAndSameSign(double input,double limit);
    double RaiseAbsLimit(double input,double *limit);
    double LowerAbsLimit(double input,double *limit);
signals:
public slots:
};

#include "srmath.h"

Srmath::Srmath(QObject *parent) :
    QObject(parent)
{

}

double Srmath::Saturate(double in,double limit)
{
    if(in>limit){
        return limit;
    }
    else if(in<-limit){
        return -limit;
    }
    else return in;
}


bool Srmath::AbsSmaller(double input,double limit)
{
    if(Abs(input)<Abs(limit))return true;
    else return false;
}

bool Srmath::AbsLarger(double input,double limit)
{
    if(Abs(input)>Abs(limit))return true;
    else return false;
}

// molempien arvojen oltava samanmerkkisia, ehto toteutuu kun tullaan nollasta ylä- tai alarajalle
bool Srmath::AbsLargerAndSameSign(double input,double limit)
{
   return (Abs(input) > Abs(limit))&&((input*limit)>0);
}

//! jos tulo on absoluuttisesti suurempi kuin raja, funktio nostaa rajaa
double Srmath::RaiseAbsLimit(double input,double *limit)
{
    if(Abs(input)>Abs(*limit)){
        *limit=Abs(input);
    }
    return *limit;
}

double Srmath::LowerAbsLimit(double input,double *limit)
{
    if(Abs(input)<Abs(*limit)){
        *limit=Abs(input);
    }
    return *limit;
}