That is not how encyclopedias work.
Something can have an article only if it is notable. "I am a great guy, my mom said so" is not enough to earn an entry.
Wikipedia is not a universal catalog of everything that everyone thinks is great.
Have you published your parabola equations in any reputable, peer reviewed maths journals? Have any notable mathematicians acknowledged and validated their importance? Has a well known game publishing house put your game in their catalog, and are there tens of thousands of players, articles, interest groups about it?
Only in those cases they are worth being in an encyclopedia.
Self published books that you wish to sell more of — I am afraid — don’t count.