From 6684155cef425e9f88fc899d6537ffb2beee815b Mon Sep 17 00:00:00 2001
From: Miodec <bartnikjack@gmail.com>
Date: Wed, 9 Feb 2022 19:19:10 +0100
Subject: [PATCH] added kogasa function

---
 backend/handlers/misc.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/backend/handlers/misc.js b/backend/handlers/misc.js
index 108dce6b6..5737b8533 100644
--- a/backend/handlers/misc.js
+++ b/backend/handlers/misc.js
@@ -19,4 +19,9 @@ module.exports = {
       return 0;
     }
   },
+  kogasa(cov) {
+    return (
+      100 * (1 - Math.tanh(cov + Math.pow(cov, 3) / 3 + Math.pow(cov, 5) / 5))
+    );
+  },
 };