From 37bae09a975d350b5bcf5566fe76cb109cf77674 Mon Sep 17 00:00:00 2001
From: Wojciech Kaczmarski <w.kaczmarski@teletra.pl>
Date: Fri, 19 Jan 2024 18:07:01 +0100
Subject: [PATCH] sped up L2-norm computation

---
 SP5WWP/lib/math/math.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/SP5WWP/lib/math/math.c b/SP5WWP/lib/math/math.c
index 2e868ef..c4cc896 100644
--- a/SP5WWP/lib/math/math.c
+++ b/SP5WWP/lib/math/math.c
@@ -41,7 +41,7 @@ float eucl_norm(const float* in1, const int8_t* in2, const uint8_t n)
 
     for(uint8_t i=0; i<n; i++)
     {
-        tmp += powf(in1[i]-(float)in2[i], 2.0f);
+        tmp += (in1[i]-(float)in2[i])*(in1[i]-(float)in2[i]);
     }
 
     return sqrtf(tmp);