cs1 lab2

cs1_lab02.Rmd

@@ -5,39 +5,39 @@ material: Instruction 2
 ---
 
 ## 1.
-Write a program using a function which prints:
+Write a program which prints `"Hello!"`, using a function:
 ```c++
 #include <stdio.h>
 
-void FunView();          // declaration of a function: line ended with semicolon!
+void printHello();       // function declaration: line ended with semicolon!
 
 int main()               // main function
 {
-    FunView();           // call the function FunView
+    printHello();        // call the function printHello
 
     return 0;
 }
-                         // definition of the function FunView
-void FunView()           // function header: contains return type and name
-{
-    printf("Hello!");    // function starting bracket
-}                        // function ending bracket
+                         // definition of the function printHello
+void printHello()        // function header: contains return type and name
+{                        // function opening bracket
+    printf("Hello!");
+}                        // function closing bracket
 ```
 
 ## 2.
 Modify the program by adding three new functions.
-First function should increment the global variable `Number` by $5$, e.g.:
+The first function should increment the global (meaning defined outside of the `main` function) variable `Number` by $5$, e.g.:
 ```c++
 void IncNumber()
 {
     Number = Number + 5; // or better: Number += 5;
 }
 ```
-Second function should decrement variable `Number` by 3.
-Third function should print current value of variable `Number`.
-The variable should be declared as global (e.g. after declaration of the function but before the beginning of the main function) and initialize it with $10$.
+The second function should decrement the variable `Number` by 3.
+The third function should print the current value of variable `Number`.
+The variable should be declared as global (e.g. after declaration of the functions but before the beginning of the main function) and initialized with $10$.
 Remember about proper declaration of the functions.
-Inside main function call the function according to the following pattern:
+Inside `main`, call the functions according to the following pattern:
 
 - print value of the variable `Number`;
 - increment value of the `Number` by 5 and repeat it three times;
@@ -48,7 +48,7 @@ Inside main function call the function according to the following pattern:
 
 ## 3.
 Create a new program which solves the quadratic equation.
-Here is a proposition of the program layout:
+Here is a suggestion for the program layout:
 ```c++
 #include <math.h>