---
title: "irrational number"
type: concept
related: [Rational Number, Real Number, Irrational Number, Set]
source: https://www.jemoka.com/posts/kbhirrational_number/
confidence: high
status: active
---

irrational numbers are real numbers that are not rational numbers.
Formally:
\begin{equation} \mathbb{C} = \mathbb{R} \backslash \mathbb{Q} \end{equation}
where, \(\backslash\) is subtracting two sets.
