Display a function - Practice Exercises C# Sharp

Lesson 3:

Basic data types

Exercise 3.9:

Display a function

Objetive:

Create a program to "draw" the graphic of the function y = (x-4)2 for integer values of x ranging -1 to 8. It will show as many asterisks on screen as the value obtained for "y", like this:

*************************
****************
*********
****
*

*
****
*********
****************

using System;
public class DisplayFunction
{
    public static void Main()
    {
        int x,y,j;
        for(x = -1; x <= 8; x ++)
        {
            y = (x-4) * (x-4);

            for(j = 0; j < y; j++)
            Console.Write("*");
            Console.WriteLine();
        }
    }
}