From 4dc0725171a35e782f4787c12b5dddbd1b728905 Mon Sep 17 00:00:00 2001
From: yap <yapisaac0@gmail.com>
Date: Sun, 23 Aug 2026 16:50:17 +0800
Subject: [PATCH] fix: add future annotations to fix NameError in
 matrix_exponentiation.py

Matrix.__mul__ references the Matrix class in its own annotation, which
is evaluated while the class is still being defined. This makes importing
the module raise NameError. Adding 'from __future__ import annotations'
defers annotation evaluation, matching the convention used elsewhere in
the repository.

Closes #15075
---
 maths/matrix_exponentiation.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/maths/matrix_exponentiation.py b/maths/matrix_exponentiation.py
index 15b0c96e0f07..5d0ef8e8aa76 100644
--- a/maths/matrix_exponentiation.py
+++ b/maths/matrix_exponentiation.py
@@ -1,5 +1,7 @@
 """Matrix Exponentiation"""
 
+from __future__ import annotations
+
 import timeit
 
 """