Lines Matching refs:t4
33 int reducedQuarticRoots(const double t4, const double t3, const double t2, const double t1,
42 t4, t3, t2, t1, t0);
49 bool t4Or = approximately_zero_when_compared_to(t4, t0) // 0 is one root
50 || approximately_zero_when_compared_to(t4, t1)
51 || approximately_zero_when_compared_to(t4, t2);
52 bool t4And = approximately_zero_when_compared_to(t4, t0) // 0 is one root
53 && approximately_zero_when_compared_to(t4, t1)
54 && approximately_zero_when_compared_to(t4, t2);
56 SkDebugf("%s t4 or and\n", __FUNCTION__);
70 && approximately_zero_when_compared_to(t0, t4);
74 && approximately_zero_when_compared_to(t0, t4);
79 if (approximately_zero_when_compared_to(t4, t0) // 0 is one root
80 && approximately_zero_when_compared_to(t4, t1)
81 && approximately_zero_when_compared_to(t4, t2)) {
87 if (approximately_zero_when_compared_to(t4, t3)) {
94 && approximately_zero_when_compared_to(t0, t4)) {
95 int num = cubicRootsReal(t4, t3, t2, t1, roots);
105 SkASSERT(approximately_zero(t4 + t3 + t2 + t1 + t0)); // 1 is one root
106 int num = cubicRootsReal(t4, t4 + t3, -(t1 + t0), -t0, roots); // note that -C==A+B+D+E
