/* www-ATLAS of Group Representations. A7 represented as 6 x 6 matrices over GF(2). */ F:=GF(2); x:=CambridgeMatrix(1,F,6,[ "010000", "000100", "001000", "100000", "000010", "000001"]); y:=CambridgeMatrix(1,F,6,[ "001000", "011000", "000010", "001100", "000001", "101011"]); G:=MatrixGroup<6,F|x,y>; print "Group G is A7 < GL(6,GF(2))";