Lines Matching defs:xb
1079 double xb = sx * (x0 - x1 - x2 + x3);
1088 ((x3 - x0) * (x1 - x2) < EP || xb * xb < xa * xc + EP));
1101 ab = xa * yb - xb * ya;
1103 bc = xb * yc - xc * yb;
1116 dy = 27 * (8 * ab * (xb * xb - xa * xc) -
1117 ex * (xa + 2 * xb + xc)) / 64 - xa * xa * (xy + xa);
1121 yy = 3 * (3 * ab * (3 * xb * xb - xa * xa - 2 * xa * xc) -
1122 xa * (3 * ac * (xa + xb) + xa * cb)) / 4;
1126 xy = 3 * (xy + 9 * f * (cb * yb * yc - xb * xc * ac) -
1127 18 * xb * yb * ab) / 8;
1181 xb = -xb; /* swap legs */
1197 long xb = x0 - x1 - x2 + x3;
1198 long xd = xb + 4 * (x1 + x2);
1205 double t1 = (double) (xb * xb - xa * xc), t2, t[5];
1213 if (labs(xc) < 2 * labs(xb))
1214 t[n++] = (double) xc / (2.0 * (double) xb); /* one change */
1217 t1 = ((double) xb - t2) / (double) xa;
1220 t1 = ((double) xb + t2) / (double) xa;
1251 fx1 = (t1 * (t1 * (double) xb - (double) (2 * xc)) -
1252 t2 * (t1 * (t1 * (double) xa - (double) (2 * xb)) + (double)
1257 fx2 = (t2 * (t2 * (double) xb - (double) (2 * xc)) -
1258 t1 * (t2 * (t2 * (double) xa - (double) (2 * xb)) + (double)
1263 fx0 -= fx3 = (t2 * (t2 * ((double) (3 * xb) - t2 * (double) xa) -