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

src/calculatorSquare.c

@@ -1,2 +1,6 @@
 #include "calculatorSquare.h"
-float calculatorSquare(float x){return x*x;}
+
+float calculatorSquare(float num)
+{
+    return num*num;
+}

src/calculatorSquare.h

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