itilbert — SciPy v1.15.3 Manual (original) (raw)

scipy.fftpack.

scipy.fftpack.itilbert(x, h, period=None, _cache=<_thread._local object>)[source]#

Return inverse h-Tilbert transform of a periodic sequence x.

If x_j and y_j are Fourier coefficients of periodic functions x and y, respectively, then:

y_j = -sqrt(-1)tanh(jh2pi/period) * x_j y_0 = 0

For more details, see tilbert.