Lines Matching defs:yb
1082 double yb = sy * (y0 - y1 - y2 + y3);
1090 ((y3 - y0) * (y1 - y2) < EP || yb * yb < ya * yc + EP));
1101 ab = xa * yb - xb * ya;
1103 bc = xb * yc - xc * yb;
1114 dx = 27 * (8 * ab * (yb * yb - ya * yc) +
1115 ex * (ya + 2 * yb + yc)) / 64 - ya * ya * (xy - ya);
1119 xx = 3 * (3 * ab * (3 * yb * yb - ya * ya - 2 * ya * yc) -
1120 ya * (3 * ac * (ya + yb) + ya * cb)) / 4;
1126 xy = 3 * (xy + 9 * f * (cb * yb * yc - xb * xc * ac) -
1127 18 * xb * yb * ab) / 8;
1184 yb = -yb;
1201 long yb = y0 - y1 - y2 + y3;
1202 long yd = yb + 4 * (y1 + y2);
1224 t1 = (double) (yb * yb - ya * yc);
1226 if (labs(yc) < 2 * labs(yb))
1227 t[n++] = (double) yc / (2.0 * (double) yb); /* one change */
1230 t1 = ((double) yb - t2) / (double) ya;
1233 t1 = ((double) yb + t2) / (double) ya;
1254 fy1 = (t1 * (t1 * (double) yb - (double) (2 * yc)) -
1255 t2 * (t1 * (t1 * (double) ya - (double) (2 * yb)) + (double)
1260 fy2 = (t2 * (t2 * (double) yb - (double) (2 * yc)) -
1261 t1 * (t2 * (t2 * (double) ya - (double) (2 * yb)) + (double)
1265 fy0 -= fy3 = (t2 * (t2 * ((double) (3 * yb) - t2 * (double) ya) -