static REAL8 CalcRDFrequency(REAL8 MF, REAL8 chiF, REAL8 Mtot)
Returns ringdown frequency in units of the total mass using fits from gr-qc/0512160/.
static REAL8 TanhWindow(const REAL8 f, const int sign, const REAL8 f0, const REAL8 sigma)
Tanh window function w^{+/-}_{f0,sigma}(f) = 0.5 * (1 +/- tanh(4*(f-f0)/sigma)) Auxiliary function us...
static double sigma(const double a, const double b, const sysq *system)
Internal function that computes the spin-spin couplings.