From 2e54eabcc7baeb19e78485da9b432f8fbcd354a9 Mon Sep 17 00:00:00 2001
From: Grant Sanderson <grant@3blue1brown.com>
Date: Fri, 5 Oct 2018 17:19:48 -0700
Subject: [PATCH] Use TAU.  Obviously.

---
 utils/space_ops.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utils/space_ops.py b/utils/space_ops.py
index 1ddf6f7f..2a1b604a 100644
--- a/utils/space_ops.py
+++ b/utils/space_ops.py
@@ -170,7 +170,7 @@ def get_unit_normal(v1, v2):
 
 
 def compass_directions(n=4, start_vect=RIGHT):
-    angle = 2 * np.pi / n
+    angle = TAU / n
     return np.array([
         rotate_vector(start_vect, k * angle)
         for k in range(n)