private double CalcIntegralCqf(double start, double end, int parts, TypeOfCqf typeOfCqf)
{
var integralValue = 0.0;
var sizeOfStep = (end - start) / parts;
for (var i = 0; i < parts; i++)
{
double[] nodes;
switch (typeOfCqf)
{
case TypeOfCqf.Iqf:
nodes = new double[3];
nodes[0] = start + sizeOfStep * i;
nodes[1] = start + sizeOfStep * (i + 1.0 / 2);
nodes[2] = start + sizeOfStep * (i + 1);
integralValue += _iqfHelper.CalcIntegral(nodes[0], nodes[2], nodes);
break;
case TypeOfCqf.Gqf:
nodes = new double[2];
nodes[0] = start + sizeOfStep * i;
nodes[1] = start + sizeOfStep * (i + 1);
integralValue += _gqfHelper.CalcIntegral(nodes[0], nodes[1]);
break;
default:
throw new ArgumentOutOfRangeException(nameof(typeOfCqf), typeOfCqf, null);
}
}
return(integralValue);
}
