Welcome
Hi, I’m Said.
Software engineer. I write about mathematics, what I build, the software and systems I test, the articles I read, and the places I travel to.
Latest posts
Design by Evolution
A salesman visiting 71 cities has more possible tours than the universe has atoms. How evolutionary algorithms search spaces that large, and NSGA-II applied to sizing Kafka clusters in the cloud.
Mathematics
The Basel problem — what it asks, and how it was solved
For almost ninety years nobody could say what 1 + 1/4 + 1/9 + ⋯ adds up to. How Euler found the answer, π²/6, how he proved it, and three later proofs that each find the π somewhere else.