"Source: Text/Geometry/CrvHyp.text";
"Line: 8640";
"Date: Fri Sep 26 09:12:34 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/CrvHyp.text, line: 8640
// Example: H137E55 ()
print "Example: H137E55";
ei := GetEchoInput();
SetEchoInput(true);
P<x> := PolynomialRing(GF(2));
C := HyperellipticCurve(x^5,P!1);
C;
tws,auts := Twists(C);
tws;
#auts; // auts is the geometric automorphism group of C
assert $1 eq 160;
SetEchoInput(ei);
