Functional Equation
16:33
USA Math Olympiad question with @PKMath1234
10:34
f(x+1) = f(x+2) +1
12:07
A Functional Equation from Putnam and Beyond
14:11
A Diophantine Equation @pkqualitymath1234
7:40
Methods of Functional Equations
33:58
3 super EQUATIONS DIFFERENTIELLES EXOTIQUES à l'oral MINES-PONTS / TPE (sup/L1)
17:08
Solving a Quartic Equation
27:12