From 8aac0c573c29d2829242d66539a9e027d03ff8ec Mon Sep 17 00:00:00 2001
From: Eduardo Julian
Date: Mon, 11 Jan 2021 02:05:30 -0400
Subject: Encapsulate JS definitions produced by the JS compiler in a local
 scope to avoid interacting with the global scope.

---
 documentation/bookmark/math.md | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'documentation/bookmark/math.md')

diff --git a/documentation/bookmark/math.md b/documentation/bookmark/math.md
index 02a042f18..6f40b8fee 100644
--- a/documentation/bookmark/math.md
+++ b/documentation/bookmark/math.md
@@ -358,6 +358,10 @@
 
 1. [Hyperbolic Functions and Non-Hyperbolic Claims](https://elliptigon.com/hyperbolic-functions-explained/)
 
+# Dual numbers
+
+1. [The Dual Numbers](https://www.youtube.com/watch?v=4nU-09e3iP8)
+
 # **Temp Cache**
 
 1. [Quadratic splines are useful too](https://wordsandbuttons.online/quadric_splines_are_useful_too.html)
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