I like to think that you saw the theme and instantly your brain fired off:"Ah yes,", dusting off your 500 page brick of a math encyclopedia, knowing the SPECIFIC page this math formula was on FROM MEMORY, you say to yourself as you flip the pages "Eureka!"
I like how this game is structured, not many levels but you can pick whichever number you want to tackle said levels. My only gripe is that you don't seem to be able to see what number your ball is going to fire off at (if there was a way to see it, maybe like a queue of numbers at the very top) it would make the game much easier to play. Or just have a "Calculate Speed" button which opens an in built calculator. Then you cackle like a cartoon villain and pet the evil cat that you totally have in front of your evil fireplace
Thought the last level being a reference to the golden ratio very cute, wish it had actual curves like it though but it does get the message across, well done! Very creative