"Source: Text/Commut/RngDiff.text";
"Line: 995";
"Date: Thu Sep 25 14:47:46 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Commut/RngDiff.text, line: 995
// Example: H121E16 ()
print "Example: H121E16";
ei := GetEchoInput();
SetEchoInput(true);
F<z> := RationalDifferentialField(Rationals());
P<X> := PolynomialRing(F);
K<x>, mp := ext<F|X^2+X+1>;
f := MinimalPolynomial(x^2); 
f;
Parent(f) eq P;
assert $1;
g := MinimalPolynomial(x+3/2); 
g;
SetEchoInput(ei);
