"Source: Text/Commut/RngDiff.text";
"Line: 677";
"Date: Wed Sep 19 23:00:01 2018";
"Main: Thu May 25 10:02:38 2023";
// original file: Text/Commut/RngDiff.text, line: 677
// Example: H118E11 ()
print "Example: H118E11";
ei := GetEchoInput();
SetEchoInput(true);
S<t> := DifferentialLaurentSeriesRing(Rationals());
RelativePrecisionOfDerivation(S);
V<w> := ChangeDerivation(S,t+O(t^6));
Derivation(V)(w);
RelativePrecisionOfDerivation(V);                       
assert $1 eq 5;
SetEchoInput(ei);
