private List <Point> GeneratePoints(float[] coefficients, float a, float b)
{
var points = new List <Point>();
for (float i = a; i <= b; i += 0.001f)
{
float x = ChebyshevApproximation.Squish(i, a, b);
float y = ChebyshevApproximation.Evaluate(coefficients, x);
points.Add(new Point(i, y));
}
return(points);
}
public void Approximate()
{
float a = -2.0f;
float b = 2.0f;
float step = 0.5f;
int rank = ChebyshevApproximation.CalculateRank(a, b, step);
var polynom = ChebyshevApproximation.Approximate(a, b, rank, myFunc);
List <float> results = new List <float>();
var xApprox = GenerateX(a, b, 0.0001f);
for (float i = a; i <= b; i += 0.0001f)
{
float x = ChebyshevApproximation.Squish(i, a, b);
results.Add(ChebyshevApproximation.Evaluate(polynom, x));
}
Assert.That(polynom.Length == rank + 1);
}