just type your binary in then hit space. ex: 1=1 2=10 3=11 4=100 5=101 6=110 7=111 15=1111 binary reads exponentialy from RIGHT TO LEFT. the far right digit, if 1, equals 1,(if its 0 then it doesnt equal anything) the second to the right digit equals 2. the 3rd to right equals 4, then 8, then 16, then 32, then 64 and so on... just keep multiplying by 2. it took me literally 10 minutes enjoy