Lines Matching defs:y1
163 double y1, y2, w1, w2;289 /* split up y into y1+y2 and compute (y1+y2)*(w1+w2) */293 y1 = y * w1;296 y1 = (double) ((float) y);297 y2 = (y - y1) * w1 + y * w2;298 y1 *= w1;300 z = y1 + y2;306 w2 = y1 - z;317 w2 = y1 - z;328 w1 = y2 - ((double) k * 0.015625 - y1);