public static RrFunction Add(LinearCombinationRrFunction leftLc, LinearCombinationRrFunction rightLc)
{
IList <double> ws = new List <double>();
IList <RrFunction> fs = new List <RrFunction>();
AddTerms(leftLc.weights, leftLc.functions, ref ws, ref fs);
AddTerms(rightLc.weights, rightLc.functions, ref ws, ref fs);
return(new LinearCombinationRrFunction(ws.ToArray(), fs.ToArray()));
}
public static RrFunction Mult(LinearCombinationRrFunction lc, ConstantRrFunction cst)
{
if (DoubleUtils.MachineEquality(1.0, cst.Value))
{
return(lc);
}
if (DoubleUtils.EqualZero(cst.Value))
{
return(RrFunctions.Zero);
}
return(LinearCombinationRrFunction.Create(lc.Weights.Map(w => w * cst.Value), lc.Functions));
}
public static RrFunction LinearCombination(double[] weights, RrFunction[] funcs)
{
return(LinearCombinationRrFunction.Create(weights, funcs));
}
public static RrFunction Sum(params RrFunction[] functions)
{
return(LinearCombinationRrFunction.Create(functions.Select(f => 1.0).ToArray(), functions));
}