"Source: Text/Group/GrpCoh.text";
"Line: 298";
"Date: Thu Jun 16 15:04:46 2022";
"Main: Thu May 25 10:02:38 2023";
// original file: Text/Group/GrpCoh.text, line: 298
// Example: H74E5 ()
print "Example: H74E5";
ei := GetEchoInput();
SetEchoInput(true);
G:=CyclicGroup(4);
mats := [ Matrix(Integers(),2,2,[1,2,1,3]) ];
invar := [2,4];
CM := CohomologyModule(G,invar,mats);
Invariants(CM);
FPGroup(CM);
MatrixOfElement(CM, G.1^2);
SetEchoInput(ei);
