Optimizing transaction settlement

Alice, Bob and their lexicographic friends traded extensively. All off-chain of course. They now…

Mathemagic: Multiplicative Inverses

In this post, I will show a trick to divide a large number using only a small multiplication by an inverse. I will show two ways of computing these inverses and how to build a small fast lookup table. In the process, we will see that a single instruction can…

Mathemagic: 512-bit Division in Solidity

In this post I will introduce five small tricks and use them…