Imaginary Numbers Are Real [Part 1: Introduction]

Name: Imaginary Numbers Are Real [Part 1: Introduction]
Description: The first part of Welch Labs' series on imaginary numbers, presenting them as the natural extension of the number line into two dimensions. It covers the history and the math with strong visuals.

Welch Labs

The first part of Welch Labs' series on imaginary numbers, presenting them as the natural extension of the number line into two dimensions. It covers the history and the math with strong visuals.

HN commenters rate the series as some of the best visual teaching on complex numbers and recommend it for building intuition.

9 Hacker News mentions · 2017–2025

Topics

Pure mathematics
Recreational & visual math

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