EvtComplex.cpp

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#include "EvtGenBase/EvtComplex.hh"
 
#include <iostream>
#include <math.h>
using std::ostream;
 
ostream& operator<<( ostream& s, const EvtComplex& c )
{
    s << "(" << c.m_rpart << "," << c.m_ipart << ")";
    return s;
}
 
EvtComplex& EvtComplex::operator*=( EvtComplex c )
{
    double r = m_rpart * c.m_rpart - m_ipart * c.m_ipart;
    double i = m_rpart * c.m_ipart + m_ipart * c.m_rpart;
 
    m_rpart = r;
    m_ipart = i;
 
    return *this;
}
 
EvtComplex& EvtComplex::operator/=( EvtComplex c )
{
    double inv = 1.0 / ( c.m_rpart * c.m_rpart + c.m_ipart * c.m_ipart );
 
    double r = inv * ( m_rpart * c.m_rpart + m_ipart * c.m_ipart );
    double i = inv * ( m_ipart * c.m_rpart - m_rpart * c.m_ipart );
 
    m_rpart = r;
    m_ipart = i;
 
    return *this;
}