refactoring: change variable names and format code in calculatorCube.c

src/calculatorCube.c

@@ -1,2 +1,9 @@
 #include "calculatorCube.h"
-float calculatorCube(float x){return x*x*x;}
+// Note:
+/* This Function may or may not be implemented in actual program, even if it is merged to the main branch.
+   If it is temporarily not included in the main Program, then this has a role in future Development of the Project */
+
+float calculatorCube(float num)
+{
+    return num*num*num;
+}

src/calculatorCube.h

@@ -2,7 +2,7 @@
 #define CALCULATORCUBE_H
 #include<stdio.h>
 #include<stdlib.h>
-float calculatorCube(float x);
+float calculatorCube(float num);
 
 
 #endif // CALCULATORCUBE_H