"Source: Text/Geometry/Scheme.text";
"Line: 8515";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/Scheme.text, line: 8515
// Example: H122E74 ()
print "Example: H122E74";
ei := GetEchoInput();
SetEchoInput(true);
A<x,y> := AffineSpace(FiniteField(2),2);
L := LinearSystem(A,[x^2-y^2,x^2,y^2]);
VL := CoefficientSpace(L);
VL;
W := sub< VL | VL.1 >;
LinearSystem(L,W);
phi := PolynomialMap(L);
[ phi(v) : v in Basis(VL) ];
SetEchoInput(ei);
