Po-Shen Loh

Official site of Po-Shen Loh: Carnegie Mellon math professor, former USA Math Olympiad coach, founder of LIVE, and a speaker in 100+ cities a year on thriving with AI.

Popular posts: 1
Total points: 101
HN comments: 43
Rank: #21,171 personal

Visit poshenloh.com → On Hacker News Apr 2025 – Apr 2025

Math & Algorithms 1 Life, Learning & Writing 1

Most points Most discussed Most cited Newest

A cute proof that makes e natural

2025101 points43 comments Math & Algorithms details

Po-Shen Loh explains why Euler's number e is natural using only precalculus: one exponential curve has tangent slope 1 at the y-axis, which leads to the compound interest limit.