Lines Matching refs:deriv
277 static void estimate(pa_smoother *s, pa_usec_t x, pa_usec_t *y, double *deriv) {295 if (deriv)296 *deriv = s->dp;309 if (deriv)310 *deriv = s->de;333 if (deriv)334 *deriv = s->c + (tx * (s->b*2 + tx * s->a*3));340 if (deriv && *deriv < 0)341 *deriv = 0;