"Source: Text/Ring/RngSer.text";
"Line: 1196";
"Date: Fri Sep 26 12:10:11 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Ring/RngSer.text, line: 1196
// Example: H51E3 ()
print "Example: H51E3";
ei := GetEchoInput();
SetEchoInput(true);
n := 500;
S<x> := LaurentSeriesRing(RationalField(), n + 2);
time D := Exp(x) - 1;
D + O(x^20);
time E := x / D;
E + O(x^20);
time B := Laplace(E);
B + O(x^20);
Coefficient(B, n);
n;
assert $1 eq 500;
SetEchoInput(ei);
