From 53b15e05b50c8902c8bf0759d234fa42f57c83f1 Mon Sep 17 00:00:00 2001
From: Bl00drav3n <bl00d_rav3n@gmx.net>
Date: Wed, 11 Apr 2018 22:32:00 +0200
Subject: [PATCH] replace call to powf with simple mul

---
 Tinn.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Tinn.c b/Tinn.c
index 5ab22c9..d07fc04 100644
--- a/Tinn.c
+++ b/Tinn.c
@@ -8,7 +8,7 @@
 // Error function.
 static float err(const float a, const float b)
 {
-    return 0.5f * powf(a - b, 2.0f);
+    return 0.5f * (a - b) * (a - b);
 }
 
 // Partial derivative of error function.