public void TestInverseFftNormalized() { float[] re = { 1, 5, 3, 7, 2, 3, 0, 7 }; float[] im = new float[re.Length]; var fft = new Fft(8); fft.Direct(re, im); fft.InverseNorm(re, im); Assert.That(re, Is.EqualTo(new[] { 1, 5, 3, 7, 2, 3, 0, 7 }).Within(1e-5)); }