I don't like doing mental math, but the examples weren't too difficult and the penalties for mistakes weren't harsh, so I enjoyed the game. True, I couldn't find any clues with the ghost except for sin and cos. Were there any more?
No, I planned to add information about powers of two on the second sign, but ran out of time. By the way, the signs themselves are a cipher (hint: the signs have different textures). If you feel like it, you can try to decode it, it's not too hard :) Thanks for playing the game!
