Calculate values of a function Learn programming C#

Lesson:

Basic Data Types

Exercise:

Calculate values of a function

Objetive:

Create a program in C# to display certain values of the function y = x^2 - 2x + 1 (using integer numbers for x, ranging from -10 to +10)

Code:

using System;
public class exercise56
{
    public static void Main()
    {
        int y, x;

        Console.WriteLine("y = x² - 2x +1");
        Console.WriteLine();

        for (x = -10; x <= 10; x++)
        {
            y = x * x - 2 * x + 1;
            Console.WriteLine(
                "x = {0} ; y=({0})² - 2*({0}) +1 = {1}",
                x, y);
        }
    }
}