Lines Matching defs:z0
219 giant x0 = pt0->x, y0 = pt0->y, z0 = pt0->z,
222 if(isZero(z0)) {
223 gtog(x1,x0); gtog(y1,y0); gtog(z1,z0);
227 gtog(x0, t1); gtog(y0,t2); gtog(z0, t3);
246 itog(1, x0); itog(1, y0); itog(0, z0);
269 gtog(t1, x0); gtog(t2, y0); gtog(t3, z0);
274 {x0,y0,z0,x1,y1,z1,
276 x0 = pt0[[1]]; y0 = pt0[[2]]; z0 = pt0[[3]];
278 If[z0 == 0, Return[pt1]];
283 t3 = z0;