/* www-ATLAS of Group Representations. 2.L2(13) represented as 2 x 2 matrices over GF(13). */ F:=GF(13); x:=CambridgeMatrix(3,F,2,\[ 0,12, 1,0]); y:=CambridgeMatrix(3,F,2,\[ 0,1, 12,12]); G:=MatrixGroup<2,F|x,y>; print "Group G is 2.L2(13) < GL(2,GF(13))";