diff --git a/src/main/c/main_taschenrechner.c b/src/main/c/main_taschenrechner.c
index edbc325..4223bf5 100644
--- a/src/main/c/main_taschenrechner.c
+++ b/src/main/c/main_taschenrechner.c
@@ -148,25 +148,6 @@ void graphMode() {
     }
 }
 
-// Programming mode
-
-void programmingMode() {
-
-    int num1, num2, result;
-    char operator;
-
-    printf("Enter first integer: ");
-    scanf("%d", &num1);
-
-    printf("Enter operator (+, -, *, /): ");
-    scanf(" %c", &operator);
-
-    printf("Enter second integer: ");
-    scanf("%d", &num2);
-
-}
-
-
 
 // change mode
 int mode(int userChoice){
diff --git a/src/main/c/programmingMode.c b/src/main/c/programmingMode.c
new file mode 100644
index 0000000..e89a75c
--- /dev/null
+++ b/src/main/c/programmingMode.c
@@ -0,0 +1,23 @@
+// programmingMode
+
+#include <stdio.h>
+#include <math.h>
+
+#include "taschenrechner.h"
+
+
+void programmingMode() {
+
+    int num1, num2, result;
+    char operator;
+
+    printf("Enter first integer: ");
+    scanf("%d", &num1);
+
+    printf("Enter operator (+, -, *, /): ");
+    scanf(" %c", &operator);
+
+    printf("Enter second integer: ");
+    scanf("%d", &num2);
+
+}
diff --git a/src/main/c/scientific.c b/src/main/c/scientific.c
deleted file mode 100644
index 0500106..0000000
--- a/src/main/c/scientific.c
+++ /dev/null
@@ -1,10 +0,0 @@
-// scientific.c
-#include <stdio.h>
-#include <math.h>
-#include "taschenrechner.h"
-
-
-double scientificMode() {
-
-    return 0.0;
-}