/* www-ATLAS of Group Representations. S7 represented as 15 x 15 matrices over GF(5). */ F:=GF(5); x:=CambridgeMatrix(1,F,15,[ "010000000000000", "100000000000000", "000010000000000", "000000100000000", "001000000000000", "410301200000000", "000100000000000", "000000000001000", "141040031002000", "000000000000010", "324210340311020", "000000010000000", "143220330402110", "000000000100000", "004310230102041"]); y:=CambridgeMatrix(1,F,15,[ "001000000000000", "000100000000000", "000001000000000", "000000010000000", "000000001000000", "000000000100000", "000000000010000", "000000000000100", "040044004000000", "000000000000001", "334023003400242", "303110400311334", "133132140132234", "400444411441143", "223231140232134"]); G:=MatrixGroup<15,F|x,y>; print "Group G is S7 < GL(15,GF(5))";