From 526cdd52043713791518c70897bf08f7b7b9ecce Mon Sep 17 00:00:00 2001
From: Hakarishirenai <118894598+Hakarishirenai@users.noreply.github.com>
Date: Sun, 11 Dec 2022 05:49:23 +0530
Subject: [PATCH] Calc_dihedral docstring updated (#3956)

* fix #3936
* Calc_dihedral docstring updated
* Author, Changelog & Docstring Updated
---
 package/AUTHORS                     | 1 +
 package/CHANGELOG                   | 2 +-
 package/MDAnalysis/lib/distances.py | 3 ++-
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/package/AUTHORS b/package/AUTHORS
index d466ccc5b8b..2eeb0f0d937 100644
--- a/package/AUTHORS
+++ b/package/AUTHORS
@@ -199,6 +199,7 @@ Chronological list of authors
   - Haleema Khan
   - Jennifer A Clark
   - Jake Fennick
+  - Utsav Khatu
 
 
 External code
diff --git a/package/CHANGELOG b/package/CHANGELOG
index 6cae00a8df6..b9a8b636537 100644
--- a/package/CHANGELOG
+++ b/package/CHANGELOG
@@ -14,7 +14,7 @@ The rules for this file:
 
 ------------------------------------------------------------------------------
 ??/??/?? IAlibay, Luthaf, hmacdope, rafaelpap, jbarnoud, BFedder, aya9aladdin,
-         jaclark5, jfennick, lilyminium, orbeckst
+         jaclark5, jfennick, lilyminium, orbeckst, Hakarishirenai
 
  * 2.4.0
 
diff --git a/package/MDAnalysis/lib/distances.py b/package/MDAnalysis/lib/distances.py
index 2b58664a8a6..785a9712fcc 100644
--- a/package/MDAnalysis/lib/distances.py
+++ b/package/MDAnalysis/lib/distances.py
@@ -1636,7 +1636,8 @@ def calc_dihedrals(coords1: Union[np.ndarray, 'AtomGroup'],
         Array containing the dihedral angles formed by each quadruplet of
         coordinates. Values are returned in radians (rad). If four single
         coordinates were supplied, the dihedral angle is returned as a single
-        number instead of an array.
+        number instead of an array. The range of dihedral angle is 
+        :math:`(-\pi, \pi)`.
 
 
     .. versionadded:: 0.8