"Source: Text/System/State.text";
"Line: 259";
"Date: Thu Sep 25 21:32:21 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/System/State.text, line: 259
// Example: H1E4 ()
print "Example: H1E4";
ei := GetEchoInput();
SetEchoInput(true);
P<[X]> := PolynomialRing(RationalField(), 5);
P;
X;
&+X;  
(&+X)^2;
SetEchoInput(ei);
