/* www-ATLAS of Group Representations. 2A5 represented as 9 x 9 matrices over GF(2). */ F:=GF(2); x:=CambridgeMatrix(1,F,9,[ "100000000", "010000000", "011000000", "110100000", "010010000", "001001000", "000100100", "000000110", "111011101"]); y:=CambridgeMatrix(1,F,9,[ "001000000", "000100000", "101000000", "010100000", "000010000", "000000010", "000000001", "000001010", "000000101"]); G:=MatrixGroup<9,F|x,y>; print "Group G is 2A5 < GL(9,GF(2))";