adolf

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication5
{
    public partial class Form1 : Form
    {
        Form2 f2 = new Form2();
        public Form1()
        {
            InitializeComponent();
        }
        public double a, b, c, d, x1, x2, p, q, x, i;




        internal void button1_Click(object sender, EventArgs e)
        {
            try
            {

                a = double.Parse(textBox1.Text);
                if (a == 0)
                {
                    textBox4.Text = "A musi byc rozne od 0";
                }
                else
                {
                    b = double.Parse(textBox2.Text);
                    c = double.Parse(textBox3.Text);
                    d = Math.Pow(b, 2) - 4 * a * c;
                    p = -b / 2 * a;
                    q = -d / 4 * a;

                    if (d >= 0)
                    {

                        x1 = -b - Math.Sqrt(d) / (2 * a);
                        x2 = -b + Math.Sqrt(d) / (2 * a);
                        textBox4.Text = "Delta =" + d.ToString()+ Environment.NewLine;
                        textBox4.Text += "x1=" + x1.ToString() + " x2=" + x2.ToString() + Environment.NewLine;
                        textBox4.Text += "p=" + p.ToString() + " q=" + q.ToString() + Environment.NewLine;
                        textBox4.Text += "Postac ogolna f(x)=" + a.ToString() + "x^2+" + b.ToString() + "x+" + c.ToString() + Environment.NewLine;
                        textBox4.Text += "Postac iloczynowa: f(x)=" + a.ToString() + "(x-(" + x1.ToString() + "))(x-(" + x2.ToString() + "))" + Environment.NewLine;
                        textBox4.Text += "Postac kanoniczna: f(x)=" + a.ToString() + "(x-(" + p.ToString() + "))^2+" + q.ToString() + Environment.NewLine;

                    }


                    else
                    {
                        if (f2.getOption1())
                        {
                        x = -b / 2 * a;
                        i = Math.Sqrt(Math.Abs(d)) / (2 * a);
                        textBox4.Text = "Delta =" + d.ToString() + Environment.NewLine;
                        textBox4.Text += "x1=" + x.ToString() + "+j" + i.ToString() + Environment.NewLine;
                        textBox4.Text += "x2=" + x.ToString() + "-j" + i.ToString() + Environment.NewLine;
                        textBox4.Text += "Postac ogolna f(x)=" + a.ToString() + "x^2+" + b.ToString() + "x+" + c.ToString() + Environment.NewLine;
                        textBox4.Text += "Postac iloczynowa: f(x)=" + a.ToString() + "(x-(" + x.ToString() + ")+j" + i.ToString() + ")(x-(" + x.ToString() + ")-j" + i.ToString() + ")" + Environment.NewLine;
                        textBox4.Text += "Postac kanoniczna: f(x)=" + a.ToString() + "(x-(" + p.ToString() + "))^2+" + q.ToString() + Environment.NewLine;
                        }
                        else
                        {
                            textBox4.Text = "Delta =" + d.ToString() + Environment.NewLine;
                            textBox4.Text +="Delta jest ujemna, brak rozwiazan";

                        }





                    }




                }
            }
            catch
            {

                textBox4.Text = "Wprowadz poprawne dane";

            }


        }



        internal void button2_Click(object sender, EventArgs e)
        {

            f2.ShowDialog();



        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void label2_Click(object sender, EventArgs e)
        {

        }

        private void label3_Click(object sender, EventArgs e)
        {

        }



    }
}