From 80da24887ac760a9d18936634d8d46c0643521ee Mon Sep 17 00:00:00 2001
From: Preston Pan <preston@nullring.xyz>
Date: Sun, 23 Jul 2023 09:12:03 -0700
Subject: add a lot of mindmap articles

---
 mindmap/partial derivative.org | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 mindmap/partial derivative.org

(limited to 'mindmap/partial derivative.org')

diff --git a/mindmap/partial derivative.org b/mindmap/partial derivative.org
new file mode 100644
index 0000000..ac1c5d2
--- /dev/null
+++ b/mindmap/partial derivative.org	
@@ -0,0 +1,14 @@
+:PROPERTIES:
+:ID:       3993a45d-699b-4512-93f9-ba61f498f77f
+:END:
+#+title: partial derivative
+#+author: Preston Pan
+#+html_head: <link rel="stylesheet" type="text/css" href="../style.css" />
+#+html_head: <script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
+#+html_head: <script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>
+#+options: broken-links:t
+
+* Definition
+The operator \(\frac{\partial}{\partial x_{n}}\) takes the [[id:31d3944a-cddc-496c-89a3-67a56e821de3][derivative]] of a function \(f(\vec{x})\) with respect to \(x_{n}\) in
+the direction of the \(x_{n}\) axis. In other words, we take the derivative \(f(\vec{x})\) as if all variables
+except \(x_{n}\) is constant.
-- 
cgit