"Source: Text/Geometry/Scheme.text";
"Line: 5553";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/Scheme.text, line: 5553
// Example: H122E39 ()
print "Example: H122E39";
ei := GetEchoInput();
SetEchoInput(true);
P2<x,y,z> := ProjectiveSpace(Rationals(),2);
C := Conic(P2, y^2 - x*z - y*z);
pt := C![1140, 2109, 1369];
prm := Parametrization(C,pt);
P1<s,t> := Domain(prm);
prm;
prm1 := ImproveParametrization(prm);
prm1;
SetEchoInput(ei);
