From 1f7f13b0933295aace5e375e5df2109460424329 Mon Sep 17 00:00:00 2001
From: Yingjie Wang <phywyj@gmail.com>
Date: Tue, 28 Oct 2025 23:27:38 -0400
Subject: [PATCH] fix: add math.h

---
 common.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/common.h b/common.h
index 9298485..95a3611 100644
--- a/common.h
+++ b/common.h
@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <gsl/gsl_errno.h>
+#include <math.h>
 
 #define PI 3.1415926535897932384626433832795028841971693993751058
 #define Rs 1