I've reached the section of the game titled "You've got mail" and I can't figure out what the diagram represents much less what to do with the calculator. Maybe just the lack of sleep is getting to me so if someone has any insight, it would be much appreciated. :) (Also is it possible to access the syscalls.txt file or is that just for story?)

I've definitely hit a wall. I've been trying to figure out the symbols for two days straight now. I think I figured out the decimal point and possibly the divison symbol but im not even sure. I only think its division because at one point i divided a number by itself and got a symbol and nan(ind) on the screen. I also managed to get it to say infinity once. Its been going on a solid two straight days now. I'm stumped and have no where else to turn besides here for answers.

Never mind figured it out.