diff --git a/src/c/funktionen.h b/src/c/funktionen.h
index 0a83972..768db23 100644
--- a/src/c/funktionen.h
+++ b/src/c/funktionen.h
@@ -37,4 +37,7 @@ float ceilingValue(float x);
 // Function to calculate the absolute difference between two numbers
 float absoluteDifference(float x, float y);
 
+// Function to calculate the maximum of two numbers
+float maximum(float x, float y);
+
 #endif
\ No newline at end of file