/* www-ATLAS of Group Representations. 2.J2.2 represented as 12 x 12 matrices over GF(7). */ F:=GF(7); x:=CambridgeMatrix(1,F,12,[ "010000000000", "600000000000", "000010000000", "000000100000", "006000000000", "000000000100", "000600000000", "000000000001", "543615266366", "000006000000", "513626422210", "000000060000"]); y:=CambridgeMatrix(1,F,12,[ "001000000000", "000100000000", "000001000000", "000000010000", "000000001000", "000000000010", "134534164050", "106146144535", "033636204424", "302332150322", "006240004222", "110414210162"]); G:=MatrixGroup<12,F|x,y>; print "Group G is 2.J2.2 < GL(12,GF(7))";