Published inIntuition·Sep 16, 2022Member-onlyRevisiting middle school mathematics: sum of exterior angles of a polygonAn elementary result could go a long way — While helping my 7-grade daughter with her math, I revisit a basic fact in plane geometry: the sum of exterior angles of a convex polygon is always 360⁰. I recall what I learned in middle school: Starting with the sum of angles of a triangle being 180⁰, by breaking an…Teaching3 min readTeaching3 min read

Published inTowards Data Science·Jan 3, 2021Checking for dependency using Binary Expansion Testing (BET)A novel nonparametric test for statistical independence — Are stars uniformly scattered in the night sky? Are galaxies uniformly distributed in the universe? Do T cells infiltrate all over a tumor for killing cancer cells? How about patches of vegetation on prairies? In many contexts, we want to determine if samples are drawn uniformly from the spaces of…Binary Expansion Testing6 min readBinary Expansion Testing6 min read