public void FitsAtSamplePoints()
{
var it = CubicSplineInterpolation.InterpolateAkima(_t, _y);
for (int i = 0; i < _y.Length; i++)
{
Assert.AreEqual(_y[i], it.ValueAt(_t[i]), "A Exact Point " + i);
}
}
public void FewSamples()
{
Assert.AreEqual(
CubicSplineInterpolation.InterpolateAkima(new[] { 1.0, 2.0, 3.0, 4.0, 5.0 }, new[] { 2.0, 2.0, 2.0, 2.0, 2.0 })
.ValueAt(1.0), 2.0);
}
/// <summary>
/// Verifies that at points other than the provided sample points, the interpolation matches the one computed by Maple as a reference.
/// </summary>
/// <param name="t">Sample point.</param>
/// <param name="x">Sample value.</param>
/// <param name="maxAbsoluteError">Maximum absolute error.</param>
public void FitsAtArbitraryPoints(double t, double x, double maxAbsoluteError)
{
var it = CubicSplineInterpolation.InterpolateAkima(_t, _y);
Assert.AreEqual(x, it.ValueAt(t), maxAbsoluteError, "Interpolation at {0}", t);
}