/* www-ATLAS of Group Representations. 2.U4(2) represented as 4 x 4 matrices over GF(3). */ F:=GF(3); x:=CambridgeMatrix(1,F,4,[ "0100", "1000", "0012", "0002"]); y:=CambridgeMatrix(1,F,4,[ "0010", "0001", "1002", "2102"]); G:=MatrixGroup<4,F|x,y>; print "Group G is 2.U4(2) < GL(4,GF(3))";