From 26959f14484c7a3d5e88e1c73d88379270e31db1 Mon Sep 17 00:00:00 2001
From: Gustavo Jose de Sousa <gustavo.sousa@intel.com>
Date: Tue, 5 Apr 2016 18:10:35 -0300
Subject: [PATCH] AP_Math: define golden ratio constant

---
 libraries/AP_Math/definitions.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libraries/AP_Math/definitions.h b/libraries/AP_Math/definitions.h
index a9256f5574..92652a8e10 100644
--- a/libraries/AP_Math/definitions.h
+++ b/libraries/AP_Math/definitions.h
@@ -13,6 +13,8 @@
   #ifndef M_PI_2
     #define M_PI_2    (M_PI / 2)
   #endif
+
+  #define M_GOLDEN    1.618033988749894
 #else    // Standard single precision math
   #ifdef M_PI
     #undef M_PI
@@ -23,6 +25,8 @@
     #undef M_PI_2
   #endif
   #define M_PI_2    (M_PI / 2)
+
+  #define M_GOLDEN  1.6180339f
 #endif
 
 #define M_2PI         (M_PI * 2)