John D. Cook johndcook.com

Physical Keys and Encryption Keys

johndcook.com·27w·Hacker News

Freshman’s dream

johndcook.com·28w·Hacker News

Why and how Bitcoin uses Merkle trees

johndcook.com·28w·Hacker News

How blocks are chained in a blockchain

johndcook.com·28w·Hacker News, Hacker News

987654321 / 123456789

johndcook.com·28w·Hacker News

Spacing the circles on the Smith chart

johndcook.com·28w·Hacker News

The Smith chart

johndcook.com·28w·Hacker News

Generating random points in Colorado

johndcook.com·28w·Hacker News

Random spherical coordinates

johndcook.com·28w·Hacker News

Distribution of correlation

johndcook.com·29w·Hacker News

Distribution of coordinates on a sphere

johndcook.com·29w·Hacker News

ODE to Fisher’s transform

johndcook.com·29w·Hacker News

Quality metrics

johndcook.com·29w·Hacker News

Turning trig identities into Fibonacci identities

johndcook.com·29w·Hacker News

Experiences with GPT-5-Codex

johndcook.com·29w·Hacker News

Ethereum’s consensus layer elliptic curve

johndcook.com·30w·Hacker News

Inverting matrices and bilinear functions

johndcook.com·30w·Hacker News

Generate random points inside a sphere

johndcook.com·30w·Hacker News

Random samples from a tetrahedron

johndcook.com·30w

GPT-5 for AI-assisted discovery

johndcook.com·30w·Hacker News

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