Features Interactive quiz with randomly generated trigonometric problems. Support for sine, cosine, and tangent functions. A variety of common angles (in radians) to test with. Feedback on correctness ...

The program calculates the Discrete Fourier Transform of nonuniformly spaced data (nDFT) in terms of the Nonuniform Discrete Cosine Transform (nDCT) and the Nonuniform Discrete Sine Transform (nDST).