/* www-ATLAS of Group Representations. 2.A6 represented as 20 x 20 matrices over GF(5). */ F:=GF(5); x:=CambridgeMatrix(1,F,20,[ "01000000000000000000", "40000000000000000000", "30440000000000000000", "23210000000000000000", "00000010000000000000", "00000000100000000000", "00004000000000000000", "00000000000100000000", "00000400000000000000", "00000000000001000000", "00000000000000100000", "00000004000000000000", "00000000000000000100", "00000000040000000000", "00000000004000000000", "23233303043011003321", "04232123331314201320", "00000000000040000000", "11230130333214104340", "40144001211431444410"]); y:=CambridgeMatrix(1,F,20,[ "00100000000000000000", "00010000000000000000", "00001000000000000000", "00000100000000000000", "00000001000000000000", "00000000010000000000", "00000000001000000000", "40000000000000000000", "00000000000010000000", "04000000000000000000", "00000000000000010000", "00000000000000001000", "00000000000000000010", "00000000000000000001", "00433200004124000000", "30231402014143140032", "20002443403102411101", "00323400003402000000", "40114300040030021303", "43112023000042323320"]); G:=MatrixGroup<20,F|x,y>; print "Group G is 2.A6 < GL(20,GF(5))";