refactoring: Extracted the scientific options from the scientificMode and move them into getScientificModeChoice

src/main/c/scientificMode.c

@@ -4,6 +4,19 @@
 #include <math.h>
 #include "taschenrechner.h"
 
+// Choice for ScientificMode
+int getScientificModeChoice() {
+    int choice;
+    printf("Scientific mode Options:\n");
+    printf("1: Square root\n");
+    printf("2: Exponential\n");
+    printf("3: Logarithm\n");
+    printf("4: Trigonometric\n");
+    printf("0: Exit\n");
+    scanf("%d", &choice);
+    return choice;
+}
+
 // Choice for Logarithm
 int getLogarithmChoice() {
     int logChoice;
@@ -16,6 +29,7 @@ int getLogarithmChoice() {
     return logChoice;
 }
 
+// Choice for Trigonomtri
 int getTrigonometricChoice() {
     int trigChoice;
     printf("Trigonometric functions:\n");
@@ -99,13 +113,7 @@ int scientificMode(){
         printf("Enter a number: ");
         scanf("%lf", &num); // scan the number from the user
 
-        printf("Scientific mode Options:\n");
-        printf("1: Square root\n");
-        printf("2: Exponential\n");
-        printf("3: Logarithm\n");
-        printf("4: Trigonometric\n");
-        printf("0: Exit\n");
-        scanf("%d", &choice); // user choice
+        choice = getScientificModeChoice();
 
         int logChoice, trigChoice;  // Move the initialization outside the loops