IvanderStars and BarsCounting pairs is the oldest trick in combinatorics… Everytime we count pairs, we learn something from it. — Gil KalaiOct 6, 2023Oct 6, 2023
IvanderSolving Mathematics Problems: IHi! It’s been ages since I write. I hope my article still relevant. I’m thinking on making series of solving math problems (you can write…Sep 4, 20231Sep 4, 20231
IvanderProblem from the Hardest Exam: Putnam CompetitionPutnam Competition 2017 B2Apr 26, 2023Apr 26, 2023
IvanderWhat’s The Use of Pascal’s Triangle?This essay describe just small from the real use of Pascal’s triangle.Apr 25, 2023Apr 25, 2023