diff --git a/src/c/funktionen.h b/src/c/funktionen.h
index 7a45053..40ce9c4 100644
--- a/src/c/funktionen.h
+++ b/src/c/funktionen.h
@@ -28,4 +28,7 @@ float power(float x, float y);
 // Function to calculate the factorial of a number
 int factorial(int x);
 
+// Function to calculate the floor value of a number
+float floorValue(float x);
+
 #endif
\ No newline at end of file