diff --git a/src/c/funktionen.c b/src/c/funktionen.c
index c1ba980..92f25aa 100644
--- a/src/c/funktionen.c
+++ b/src/c/funktionen.c
@@ -1,4 +1,7 @@
 #include <stdio.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <math.h>
 #include "funktionen.h"
 
 void welcome() {
@@ -75,4 +78,9 @@ int characterAppearanceInString(char c, char string[]) {
     }
 
     return appear;
+}
+
+// Function to calculate the sine of an angle in radians
+float sine(float x) {
+	return sin(x);
 }
\ No newline at end of file