"Source: Text/Basics/FldForms.text";
"Line: 1145";
"Date: Thu Sep 25 14:47:46 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Basics/FldForms.text, line: 1145
// Example: H30E13 ()
print "Example: H30E13";
ei := GetEchoInput();
SetEchoInput(true);
_<x,y,z> := PolynomialRing(Rationals(),3);
f := x^2 + x*y +3*x*z - 2*y*z + y^2 +z^2;
V := QuadraticSpace(f);
PolarSpaceType(V);
IsNonsingular(V);
assert $1;
QuadraticFormMatrix(V);
SetEchoInput(ei);
