diff --git a/maths.hpp b/maths.hpp
index 93ba08fc..250f3084 100644
--- a/maths.hpp
+++ b/maths.hpp
@@ -37,19 +37,22 @@ namespace util {
 }
 
 
-//-----------------------------------------------------------------------------
-// Exponentials
+///////////////////////////////////////////////////////////////////////////////
+// exponentials
+
 template <typename T>
 constexpr T
 pow2 [[gnu::pure]] (T value)
     { return value * value; }
 
 
+//-----------------------------------------------------------------------------
 template <typename T>
 constexpr T
 pow [[gnu::pure]] (T x, unsigned y);
 
 
+//-----------------------------------------------------------------------------
 template <typename T>
 bool
 is_pow2 [[gnu::pure]] (T value);