Hello, i'm a 15-year-old Hobbyist Mathematician. I'm self-studying and yeah. Some of my hobbies are solving complicated integrals, for example, i've done a extensive study of symbolic integral of product of logarithms, i have rediscovered general solution for product of 3 logarithms but can only split integrals of product of 4 logarithms into (potentially) simpler integral. My post about that can be found here. Very interesting stuffs.