private double PartialSum1(int n, double x)
{
var s = coeff1(0);
for (int j = 1; j <= n; j++)
{
s += coeff1(j) * MixHaar.MixedHaar(1, j + 1)(x);
}
return(s);
}
private double PartialSum2(int n, double x)
{
var s = coeff2(0) + coeff2(1) * x;
for (int j = 2; j <= n; j++)
{
s += coeff2(j) * MixHaar.MixedHaar(2, j + 1)(x);
}
return(s);
}