/* www-ATLAS of Group Representations. A6 represented as 4 x 4 matrices over GF(2). */ F:=GF(2); x:=CambridgeMatrix(1,F,4,[ "0100", "1000", "0001", "0010"]); y:=CambridgeMatrix(1,F,4,[ "0010", "0110", "0101", "1001"]); G:=MatrixGroup<4,F|x,y>; print "Group G is A6 < GL(4,GF(2))";