/* www-ATLAS of Group Representations. 2S5 represented as 2 x 2 matrices over GF(25). */ F:=GF(25); x:=CambridgeMatrix(3,F,2,\[ 4,0, 18,1]); y:=CambridgeMatrix(3,F,2,\[ 0,1, 1,14]); G:=MatrixGroup<2,F|x,y>; print "Group G is 2S5 < GL(2,GF(25))";