refactoring: Extracted the trigonometric options from the executeTrigonometricFunction and move them into getTrigonometricChoice

src/main/c/scientificMode.c

@@ -16,6 +16,17 @@ int getLogarithmChoice() {
     return logChoice;
 }
 
+int getTrigonometricChoice() {
+    int trigChoice;
+    printf("Trigonometric functions:\n");
+    printf("1: Sine\n");
+    printf("2: Cosine\n");
+    printf("3: Tangent\n");
+    printf("0: Exit Trigonometric Menu\n");
+    scanf("%d", &trigChoice);
+    return trigChoice;
+}
+
 
 // Logarithm
 void executeLogarithmFunction(double num) {
@@ -52,12 +63,8 @@ void executeTrigonometricFunction(double num) {
     int trigChoice;
 
     do {
-        printf("Trigonometric functions:\n");
-        printf("1: Sine\n");
-        printf("2: Cosine\n");
-        printf("3: Tangent\n");
-        printf("0: Exit Trigonometric Menu\n");
-        scanf("%d", &trigChoice);
+        
+        trigChoice = getTrigonometricChoice();
 
         switch (trigChoice) {
             case 1: // Sine