/* M22:2 as 10 x 10 matrices over GF(2). Representation 10b, the `cocode' representation. Group has orbits 22 + 231 + 770 on nonzero vectors of the module. */ F:=GF(2); x:=CambridgeMatrix(1,F,10,[ "1000000000", "0010000000", "0100000000", "0011100000", "0110100000", "1001011000", "0010101000", "0010100100", "1101101010", "0100100001"]); y:=CambridgeMatrix(1,F,10,[ "0100000000", "1001000000", "0001000000", "0010000000", "1010010000", "0001011100", "1111010110", "1001100110", "1100001101", "1101001110"]); G:=MatrixGroup<10,F|x,y>; c:=x;d:=y;