From cd841acc7b5b3eef92b10735572fc5cf383eb97f Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Tue, 30 Jun 2015 22:02:39 +1000
Subject: [PATCH] maths: style

---
 maths.hpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/maths.hpp b/maths.hpp
index dea45d54..94991d72 100644
--- a/maths.hpp
+++ b/maths.hpp
@@ -221,10 +221,13 @@ factorial [[gnu::pure]] (unsigned i)
 }
 
 
+/// stirlings approximation of factorials
 constexpr uintmax_t
 stirling [[gnu::pure]] (unsigned n)
 {
-    return static_cast<uintmax_t> (std::sqrt (2 * PI<float> * n) * std::pow (n / E<float>, n));
+    return static_cast<uintmax_t> (
+        std::sqrt (2 * PI<float> * n) * std::pow (n / E<float>, n)
+    );
 }