double rk_noncentral_f(rk_state *state, double dfnum, double dfden, double nonc) { double t = rk_noncentral_chisquare(state, dfnum, nonc) * dfden; return t / (rk_chisquare(state, dfden) * dfnum); }
double rk_noncentral_f(rk_state *state, double dfnum, double dfden, double nonc) { return ((rk_noncentral_chisquare(state, dfnum, nonc)*dfden) / (rk_chisquare(state, dfden)*dfnum)); }