From 7344f2d58ce8a23c851f657f2d343372113d1987 Mon Sep 17 00:00:00 2001
From: Ahmet Inan <inan@aicodix.de>
Date: Sun, 12 Aug 2018 17:46:52 +0200
Subject: [PATCH] added eighth Pi constant

---
 const.hh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/const.hh b/const.hh
index 26a5c46..c730099 100644
--- a/const.hh
+++ b/const.hh
@@ -11,6 +11,7 @@ namespace DSP {
 
 template <typename T>
 struct Const {
+	static inline T EighthPi()	{ return   0.39269908169872415481; } // a(1)/2
 	static inline T FourthPi()	{ return   0.78539816339744830962; } // 1*a(1)
 	static inline T HalfPi()	{ return   1.57079632679489661923; } // 2*a(1)
 	static inline T Pi()		{ return   3.14159265358979323846; } // 4*a(1)