Lines Matching refs:dxy
763 double xi, yi, xi_1, yi_1, x0, y0, dxy, sk, sk1, t;
783 dxy = 0;
825 dxy = xi_1 * yi - xi * yi_1;
826 a00 = a00 + dxy;
827 dxy = xi * y0 - x0 * yi;
828 a00 = a00 + dxy;
839 dxy = 0;
857 dxy = xi_1 * y_s - x_s * yi_1;
858 a00 += dxy;
859 dxy = x_s * y0 - x0 * y_s;
860 a00 += dxy;
871 dxy = x_s * yi - xi * y_s;
876 dxy = xi_1 * yi - xi * yi_1;
878 a00 += dxy;
888 dxy = xi_1 * yi - xi * yi_1;
890 a00 += dxy;
