public void FourierNaiveIsReversible(FourierOptions options)
{
var dft = new DiscreteFourierTransform();
var samples = SignalGenerator.Random((u, v) => new Complex(u, v), GetUniform(1), 0x80);
var work = new Complex[samples.Length];
samples.CopyTo(work, 0);
work = dft.NaiveForward(work, options);
Assert.IsFalse(work.ListAlmostEqual(samples, 6));
work = dft.NaiveInverse(work, options);
AssertHelpers.ListAlmostEqual(samples, work, 12);
}
public void FourierDefaultTransformIsReversible()
{
var samples = SignalGenerator.Random((u, v) => new Complex(u, v), GetUniform(1), 0x7FFF);
var work = new Complex[samples.Length];
samples.CopyTo(work, 0);
Transform.FourierForward(work);
Assert.IsFalse(work.ListAlmostEqual(samples, 6));
Transform.FourierInverse(work);
AssertHelpers.ListAlmostEqual(samples, work, 10);
Transform.FourierInverse(work, FourierOptions.Default);
Assert.IsFalse(work.ListAlmostEqual(samples, 6));
Transform.FourierForward(work, FourierOptions.Default);
AssertHelpers.ListAlmostEqual(samples, work, 10);
}
