ECO SCI SH Shakti Kumar · ThinkArt The Rule Of 72 — How Fast Will Your Money Double? If you invest money today, how long will it take to double? Well, there is a simple trick to calculate it without needing to resort to…
ECO TCH SH Shakti Kumar · Cantor’s Paradise Spotting Your Credit Card Typos Instantly — Luhn’s Algorithm How does a website instantly tell if your card number is wrong? No. It does not scan an online database to check if your card number…
ECO TCH SCI SH Shakti Kumar Number Theory Part 2 — Ciphering Techniques In the 1st part, we looked at modular arithmetic — one of the basic blocks of number theory and some interesting applications of the same…
SCI SPR SH Shakti Kumar Visit To Mathematician Ramanujan’s House Last Monday, I had the privilege of visiting mathematician Srinivasa Ramanujan’s house. It is situated in Kumbakonam, a town in the South…
SH Shakti Kumar The Island That Lost A Day In my last post, I wrote about latitudes, longitudes, what are time zones and what causes the sun to set late in Mumbai
