/* www-ATLAS of Group Representations. U7(2) represented as 7 x 7 matrices over GF(4). */ F:=GF(4); x:=CambridgeMatrix(1,F,7,[ "1000000", "0100000", "0010000", "0001000", "0000100", "0000010", "2332231"]); y:=CambridgeMatrix(1,F,7,[ "0100000", "0010000", "0001000", "0000100", "0000010", "0000001", "1000000"]); G:=MatrixGroup<7,F|x,y>; print "Group G is U7(2) < GL(7,GF(4))";