/* www-ATLAS of Group Representations. 3.A7 represented as 42 x 42 matrices over GF(5). */ F:=GF(5); x:=CambridgeMatrix(1,F,42,[ "010000000000000000000000000000000000000000", "344000000000000000000000000000000000000000", "141000000000000000000000000000000000000000", "000001000000000000000000000000000000000000", "000000010000000000000000000000000000000000", "000000000100000000000000000000000000000000", "000000000001000000000000000000000000000000", "000000000000010000000000000000000000000000", "000000000000000100000000000000000000000000", "000100000000000000000000000000000000000000", "000000000000000000100000000000000000000000", "000000000000000000001000000000000000000000", "000000000000000000000010000000000000000000", "000010000000000000000000000000000000000000", "000000000000000000000000010000000000000000", "000000000000000000000000000100000000000000", "000000000000000000000000000001000000000000", "000000000000000000000000000000100000000000", "000000000000000000000000000000001000000000", "000000000000000000000000000000000010000000", "000000100000000000000000000000000000000000", "000000000000000000000000000000000000010000", "000000000000000000000000000000000000000100", "000000000000000000000000000000000000000001", "314401130130412121132411244040211312423441", "031433132442444122230343001443210102212332", "434040114202324012234111002430221321302224", "000000001000000000000000000000000000000000", "011310431013142023142402240411201113101200", "212224032212401204201104003143321221401312", "433021120234200130341041001042341430203101", "204210331113133041422200221232304311301110", "000000000010000000000000000000000000000000", "040432034404442334043442123432122111313321", "241042044020004200444142102022044120113214", "402033030143011441320130301213142400232021", "234300324312331414210200401131321420223044", "000000023414321120330302400034241403212242", "344103444211122124412044234122224323342334", "000000000000100000000000000000000000000000", "031202212300010001000034240203211414411240", "130441411044401414431004343311222133421142"]); y:=CambridgeMatrix(1,F,42,[ "001000000000000000000000000000000000000000", "000100000000000000000000000000000000000000", "000010000000000000000000000000000000000000", "000000100000000000000000000000000000000000", "000000001000000000000000000000000000000000", "000000000010000000000000000000000000000000", "000000000000100000000000000000000000000000", "000000000000001000000000000000000000000000", "000000000000000010000000000000000000000000", "000000000000000001000000000000000000000000", "000000000000000000010000000000000000000000", "000000000000000000000100000000000000000000", "000000000000000000000001000000000000000000", "000000000000000000000000100000000000000000", "000000000000000000000000001000000000000000", "000000000000000000000000000010000000000000", "100000000000000000000000000000000000000000", "000000000000000000000000000000010000000000", "000000000000000000000000000000000100000000", "000000000000000000000000000000000001000000", "000000000000000000000000000000000000100000", "000000000000000000000000000000000000001000", "000000000000000000000000000000000000000010", "010000000000000000000000000000000000000000", "333143140243201114021224020433140111010403", "312144323323413111022412331002422003221302", "333403220243124023413010240331230112032321", "441132010311442144131004443440224400214131", "421341000423001421310242400130024012401020", "030132432220341002144201022032411242230302", "114442303431321410224104132034022424414340", "304000030411443234240004322141142414021121", "342440224041211331344133201302242330422412", "431332310244110402401442432041144120124240", "432033010033314100412001341221000321223300", "044301223100013023014041313202234032303010", "433040302142330123103444023103300124244101", "321304440413122011301433433402001212013322", "232001444321033112220011102424003204011004", "423332233331423421044441404143110313423204", "131133312100242433124304003130103242411144", "123030444420440403011024210020114104203114"]); G:=MatrixGroup<42,F|x,y>; print "Group G is 3.A7 < GL(42,GF(5))";