public override RrFunction Add(RrFunction other)
{
var cst = other as ConstantRrFunction;
if (cst != null)
{
return(RrFunctions.Constant(Value + cst.Value));
}
var step = other as StepFunction;
if (step != null)
{
return(StepFunction.Add(step, this));
}
var spline = other as SplineInterpoler;
if (spline != null)
{
return(SplineInterpoler.Add(spline, this));
}
return(base.Add(other));
}
public override RrFunction Integral(double basePoint)
{
if (DoubleUtils.EqualZero(slope))
{
return(RrFunctions.Constant(weight).Integral(basePoint));
}
var zeroBaseIntegral = Create(weight / slope, slope);
return(zeroBaseIntegral - zeroBaseIntegral.Eval(basePoint));
}
public static RrFunction Create(double weight, double slope)
{
if (DoubleUtils.EqualZero(weight))
{
return(RrFunctions.Zero);
}
if (DoubleUtils.EqualZero(slope))
{
return(RrFunctions.Constant(weight));
}
return(new ExpRrFunction(weight, slope));
}
public override RrFunction Inverse()
{
return(RrFunctions.Constant(1.0 / Value));
}
public static RrFunction Mult(ConstantRrFunction left, ConstantRrFunction right)
{
return(RrFunctions.Constant(left.Value * right.Value));
}