7:13

There Are More Solutions Than You Might Think | The "Pointwise Trap" for Functional Equations

22:58

Differential Equations with Repeated Roots: Explained in 3 Ways

9:23

I want a simple life, but WolframAlpha doesn't allow it!

7:53

When Proof By Induction Fails

6:20

Integration using King’s Rule

7:24

Functional Equation Problem: Find f(4)

19:27

How Paul Erdős Cracked This Geometry Problem | The Anning-Erdős Theorem

8:22

a fascinating non linear differential equation