TF

wield.iirrational.TFmath.TF

Utilities to manipulate ZPK roots S to/from Z, and make transfer functions

Functions

SorZtoSorZ(ZPK, F_nyquist_Hz_in, ...[, ...])
StoZ(ZPK, F_nyquist_Hz[, F_Hz, ...])
TF_ZPK(F_Hz, ZPK[, F_nyquist_Hz, group_len])	Stably generates the ZPK transfer function, interlacing zeros and poles to prevent small number accumulating
ZPK_fill([ZPK, Z, P, K, F_nyquist_Hz])
ZtoS(ZPK, F_nyquist_Hz[, F_Hz, ...])

Details

SorZtoSorZ(ZPK, F_nyquist_Hz_in, F_nyquist_Hz_out, F_Hz=None, gain_scale_policy='median', error=False)

StoZ(ZPK, F_nyquist_Hz, F_Hz=None, gain_scale_policy='median', error=False)

TF_ZPK(F_Hz, ZPK, F_nyquist_Hz=None, group_len=1)

Stably generates the ZPK transfer function, interlacing zeros and poles to prevent small number accumulating

ZPK_fill(ZPK=None, Z=None, P=None, K=None, F_nyquist_Hz=None)

ZtoS(ZPK, F_nyquist_Hz, F_Hz=None, gain_scale_policy='median', error=False)