From c6f9be6ea6a6eed9ef76de672a7563a3402a0a05 Mon Sep 17 00:00:00 2001
From: ben-jaynes <1btjaynes@gmail.com>
Date: Fri, 2 Oct 2026 11:51:41 -0700
Subject: [PATCH] vault backup: 2026-10-02 11:51:41

---
 College/AU 26/MATH 224 (Multivar)/Class 10-2.md | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/College/AU 26/MATH 224 (Multivar)/Class 10-2.md b/College/AU 26/MATH 224 (Multivar)/Class 10-2.md
index 2efe3fa..1d64e29 100644
--- a/College/AU 26/MATH 224 (Multivar)/Class 10-2.md	
+++ b/College/AU 26/MATH 224 (Multivar)/Class 10-2.md	
@@ -3,4 +3,7 @@
 - definite integral represents the signed area between a function and the x axis between the two bounds
 	- $\int_{a}^b f(x) dx$
 	- for functions with one variable
-- 
\ No newline at end of file
+	- riemann sums: $$\int_{a}^b f(x) dx = \lim_{ n \to \infty } f(x^*_{k}) \Delta x$$
+- double integral
+	- $f(x,y)$
+	- 
\ No newline at end of file