From 9ccf0ce8d59e8cd8a8774409d6a82ae11561514f Mon Sep 17 00:00:00 2001
From: Michael Wimmer <m.t.wimmer@tudelft.nl>
Date: Sat, 12 Sep 2020 17:24:59 +0200
Subject: [PATCH] fix typo, closes #6

---
 src/2_coordinates.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/2_coordinates.md b/src/2_coordinates.md
index a33c4a8..83249d4 100644
--- a/src/2_coordinates.md
+++ b/src/2_coordinates.md
@@ -150,7 +150,7 @@ understood: the area swept by an angle difference $d\varphi$
     2\pi \int_0^{r_0} r dr = 2 \pi \frac{1}{2} r_0^2 = \pi r_0^2,
     $$
 
-    which is indeed the area of a circle with radius 0.
+    which is indeed the area of a circle with radius $r_0$.
 
 ## Converting derivatives between coordinate systems
 
-- 
GitLab