string, 'HeaviSine', 'Bumps', 'Blocks',
'Doppler', 'Ramp','Cusp', 'Sing', 'HiSine',
'LoSine', 'LinChirp', 'TwoChirp', 'QuadChirp',
'MishMash', 'WernerSorrows' (Heisenberg),
'Leopold' (Kronecker), 'Riemann', 'HypChirps',
'LinChirps', 'Chirps', 'Gabor', 'sineoneoverx',
'Cusp2', 'SmoothCusp', 'Piece-Regular' (Piece-Wise Smooth),
'Piece-Polynomial' (Piece-Wise 3rd degree polynomial).