"Source: Text/Geometry/Lseries.text";
"Line: 2788";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/Lseries.text, line: 2788
// Example: H139E34 ()
print "Example: H139E34";
ei := GetEchoInput();
SetEchoInput(true);
E := EllipticCurve("73a"); // conductor 73
L := LSeries(E);           // note this is < 389 (!)
L3 := SymmetricPower(L, 3);
LSeriesData(L3); // Magma knows the Sign is +1
LSetPrecision(L3, 9);
CentralValue(L3); // analytic rank 2
SetEchoInput(ei);
