"Source: Text/Geometry/Scheme.text";
"Line: 5080";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/Scheme.text, line: 5080
// Example: H122E33 ()
print "Example: H122E33";
ei := GetEchoInput();
SetEchoInput(true);
P<x,y,z> := ProjectiveSpace(Rationals(),2);
C := Curve(P,x^2+y^2-z^2);
C1 := AffinePatch(C,1);
C2 := AffinePatch(C,2);
F := FunctionField(C);
f := F!(x/y);
P1 := ProjectiveSpace(Rationals(),1);
mp1 := map<C->P1 | [f,1]>;
mp2 := map<C1->P1 | [f,1]>;
mp3 := map<C2->P1 | [f,1]>;
SetEchoInput(ei);
