static double sigmoid (I, double x, double *deriv) { double act = NUMsigmoid (x); (void) void_me; *deriv = act * ( 1.0 - act); return act; }
static double sigmoid (FFNet /*me*/, double x, double *deriv) { double act = NUMsigmoid (x); *deriv = act * (1.0 - act); return act; }