div method
Implementation
MathComplex div( dynamic r ){
if( r is MathComplex ){
if( r._im == 0.0 ){
return MathComplex( _re / r._re, _im / r._re );
}
if( ClipMath.abs( r._re ) < ClipMath.abs( r._im ) ){
double w = r._re / r._im;
double d = r._re * w + r._im;
return MathComplex( (_re * w + _im) / d, (_im * w - _re) / d );
}
double w = r._im / r._re;
double d = r._re + r._im * w;
return MathComplex( (_re + _im * w) / d, (_im - _re * w) / d );
}
double rr = ClipMath.toDouble(r);
return MathComplex( _re / rr, _im / rr );
}