diff --git a/src/angles_between.scad b/src/angles_between.scad
new file mode 100644
index 00000000..53251a8e
--- /dev/null
+++ b/src/angles_between.scad
@@ -0,0 +1 @@
+function angles_between(vt1, vt2) = acos((vt1 * vt2) / (norm(vt1) * norm(vt2)));
\ No newline at end of file
diff --git a/src/experimental/note.md b/src/experimental/note.md
index 09985ed6..d949d99a 100644
--- a/src/experimental/note.md
+++ b/src/experimental/note.md
@@ -10,5 +10,6 @@ dotSCAD 3.0 Dev
 
 New modules/functions
 
+- `angles_between`
 - `spherical_coordinate`
 - `util/some`