From 98d95b8c49d7d75982d70213a12bbd07b007f7e6 Mon Sep 17 00:00:00 2001
From: fdai7968 <julian.schneider@informatik.hs-fulda.de>
Date: Thu, 8 Feb 2024 16:56:26 +0000
Subject: [PATCH] refactoring: if angle is 0 return 0 for tangens

---
 src/trig_functions/trig_functions.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/trig_functions/trig_functions.c b/src/trig_functions/trig_functions.c
index 7f12327..186a4fe 100644
--- a/src/trig_functions/trig_functions.c
+++ b/src/trig_functions/trig_functions.c
@@ -12,5 +12,6 @@ double calculate_cos(double angle) {
 }
 
 double calculate_tan(double angle) {
-    return tan(angle);
+    if (angle==0) return 0;
+    else return tan(angle);
 }