Searched refs:invdel (Results 1 – 1 of 1) sorted by relevance
1390 l_float32 minx, maxx, der, invdel; in numaDifferentiateInterval() local1426 invdel = 0.5 * ((l_float32)npts - 1.0) / (x1 - x0); in numaDifferentiateInterval()1430 der = 0.5 * invdel * (fay[1] - fay[0]); in numaDifferentiateInterval()1433 der = invdel * (fay[i + 1] - fay[i - 1]); in numaDifferentiateInterval()1436 der = 0.5 * invdel * (fay[npts - 1] - fay[npts - 2]); in numaDifferentiateInterval()