public override double primitive(double x)
{
if (x >= xBegin_.Last())
{
return(extrapolationHelper_.primitive(x));
}
double i;
if (x >= sectionHelpers_.Keys.Last())
{
i = sectionHelpers_.Keys.Last();
}
else if (x <= sectionHelpers_.Keys.First())
{
i = sectionHelpers_.Keys.First();
}
else
{
i = sectionHelpers_.Keys.First(y => x < y);
}
return(sectionHelpers_[i].primitive(x));
}
public double primitive(double x)
{
return(quadraticity_ * quadraticHelper_.primitive(x) + (1.0 - quadraticity_) * convMonoHelper_.primitive(x));
}