Category: Combinatorics

Counting Possibilities (Video)

Richard of Art of Problem Solving is back this month to give another mind-blowing tutorial how to count possibilities in some problems in combinatorics. This is already the 50th episode of his Youtube video...

H Operator in Combinatorics

This article was shared by 2014 MMC National Finalist Daniel James Molina. I am also fascinated with how this operator works. It is also my first time to hear that there is an H...

The Odds of Winning

Probability is my favorite branch of Mathematics even though this is my weakness. When I crossed the place we commonly called “peryahan”   I am always thinking how to beat them. For some, this is...

The Handshake Problem

I have seen in facebook groups that some people are not really familiar how to solve handshake problems.  I have prepared visuals to make sure that after reading this article it will be easy...