Lines Matching defs:x1
56 void set(float x1, float y1,
61 ax = 3 * (x2 - x3) + x4 - x1;
63 bx = 3 * (x1 - 2 * x2 + x3);
65 cx = 3 * (x2 - x1);
67 dx = x1;
73 void set(float x1, float y1,
79 bx = x1 - 2 * x2 + x3;
81 cx = 2 * (x2 - x1);
83 dx = x1;
141 // position requires that 2 initial values x0,x1 be given, and that the
188 private float falsePositionROCsqMinusX(float x0, float x1,
193 float t = x1, ft = eliminateInf(ROCsq(t) - x);