Calc3/Form1.cs

using BaseCalculator;
using System;
using System.Diagnostics.Eventing.Reader;
using System.Linq.Expressions;
using System.Windows.Forms;

namespace palopa.rur
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button6_Click(object sender, EventArgs e)
        {

        }

        private void button46_Click(object sender, EventArgs e)
        {
            textBox1.Clear();
            textBox2.Clear();
            textBox1.Focus();
        }

        private void button25_Click(object sender, EventArgs e)
        {
            textBox1.Text += "1";
   
        }

        private void button29_Click(object sender, EventArgs e)
        {
            textBox1.Text += "4";
        }

        private void button38_Click(object sender, EventArgs e)
        {
            textBox1.Text += "0";
        }

        private void button41_Click(object sender, EventArgs e)
        {
            textBox1.Text += "MR";
        }

        private void Выражение_Click(object sender, EventArgs e)
        {

        }

        private void label2_Click(object sender, EventArgs e)
        {

        }

        private void button44_Click(object sender, EventArgs e)
        {
            try
            {
                string expression = textBox1.Text;
                AnalaizerClass.expression = expression;
                if (!AnalaizerClass.CheckCurrency())
                {
                    textBox2.Text = $"Ошибка: некоректные скобки";
                    return;
                }

                expression = expression.Replace(" ", "").Replace("(", "").Replace(")", "");

                if (expression.Contains("+"))
                {
                    string[] parts = expression.Split('+');
                    if (parts.Length == 2)
                    {
                        long a = long.Parse(parts[0]);
                        long b = long.Parse(parts[1]);

                        int result = CalcClass.Add(a, b);

                        textBox2.Text = result.ToString();
                    }
                }

                else if (expression.Contains("-"))
                {
                    string[] parts = expression.Split('-');
                    if (parts.Length == 2)
                    {
                        long a = long.Parse(parts[0]);
                        long b = long.Parse(parts[1]);

                        int result = CalcClass.Sub(a, b);

                        textBox2.Text = result.ToString();
                    }
                }
                else if (expression.Contains("*"))
                {
                    string[] parts = expression.Split('*');
                    if (parts.Length == 2)
                    {
                        long a = long.Parse(parts[0]);
                        long b = long.Parse(parts[1]);

                        int result = CalcClass.Mult(a, b);

                        textBox2.Text = result.ToString();
                    }

                }
                else if (expression.Contains("sin"))
                {
                    string[] parts = expression.Split(new string[] { "sin" }, StringSplitOptions.None);
                    if (parts.Length == 2)
                    {
                        double a = double.Parse(parts[0].Trim());

                        double result = CalcClass.Sinus(a);
                        textBox2.Text = result.ToString();
                    }
                }
                else if (expression.Contains("cos"))
                {
                    string[] parts = expression.Split(new string[] { "cos" }, StringSplitOptions.None);
                    if (parts.Length == 2)
                    {
                        double a = double.Parse(parts[0].Trim());

                        double result = CalcClass.Cosinus(a);
                        textBox2.Text = result.ToString();
                    }
                }
                else if (expression.Contains("/"))
                {
                    string[] parts = expression.Split('/');
                    if (parts.Length == 2)
                    {
                        long a = long.Parse(parts[0]);
                        long b = long.Parse(parts[1]);

                        int result = CalcClass.Div(a, b);

                        textBox2.Text = result.ToString();
                    }
                }
                else if (expression.Contains("Mod"))
                {
                    string[] parts = expression.Split(new string[] { "Mod" }, StringSplitOptions.None);
                    if (parts.Length == 2)
                    {
                        long a = long.Parse(parts[0].Trim());
                        long b = long.Parse(parts[1].Trim());
                        if (b == 0)
                        {
                            textBox2.Text = "Ошибка: деление на ноль в операции Mod";
                            return;
                        }
                        int result = CalcClass.Mod(a, b);
                        textBox2.Text = result.ToString();
                    }
                    else
                    {
                        textBox2.Text = "Ошибка: неверный формат выражения для Mod";
                    }
                }
                else if (expression.Contains("e"))
                {
                    string[] parts = expression.Split('e');
                    if (parts.Length == 2)
                    {
                        double a = double.Parse(parts[0]);
                        

                        double result = CalcClass.Exp(a);

                        textBox2.Text = result.ToString();
                    }
                }


                else if (expression.Contains("²"))

                {
                    string[] parts = expression.Split('²');
                    if (parts.Length == 2)
                    {
                        double a = double.Parse(parts[0]);


                        double result = CalcClass.Square(a);

                        textBox2.Text = result.ToString();
                    }

                }

                else if (expression.Contains("³"))

                {
                    string[] parts = expression.Split('³');
                    if (parts.Length == 2)
                    {
                        double a = double.Parse(parts[0]);


                        double result = CalcClass.Cube(a);

                        textBox2.Text = result.ToString();
                    }

                }
                else
                {
                    textBox2.Text = $"Ошибка: неверный формат выражения";
                }

            }
            catch (Exception ex)
            {
                textBox2.Text = $"Ошибка: {ex.Message}";
            }
        }


        private void button26_Click(object sender, EventArgs e)
        {
            textBox1.Text += "2";
        }

        private void button27_Click(object sender, EventArgs e)
        {
            textBox1.Text += "3";
        }

        private void button30_Click(object sender, EventArgs e)
        {
            textBox1.Text += "5";
        }

        private void button31_Click(object sender, EventArgs e)
        {
            textBox1.Text += "6";
        }

        private void button33_Click(object sender, EventArgs e)
        {
            textBox1.Text += "7";
        }

        private void button34_Click(object sender, EventArgs e)
        {
            textBox1.Text += "8";
        }

        private void button35_Click(object sender, EventArgs e)
        {
            textBox1.Text += "9";
        }

        private void button40_Click(object sender, EventArgs e)
        {
            textBox1.Text += "+";
        }

        private void button36_Click(object sender, EventArgs e)
        {
            textBox1.Text += "-";
        }

        private void button32_Click(object sender, EventArgs e)
        {
            textBox1.Text += "*";
        }

        private void button39_Click(object sender, EventArgs e)
        {
            textBox1.Text += "Mod";
        }

        private void button28_Click(object sender, EventArgs e)
        {
            textBox1.Text += "/";
        }

        private void button47_Click(object sender, EventArgs e)
        {
            textBox1.Text += "(";
        }

        private void button48_Click(object sender, EventArgs e)
        {
            textBox1.Text += ")";
        }

        private void button45_Click(object sender, EventArgs e)
        {
            if (!string.IsNullOrEmpty(textBox1.Text))
            {
                textBox1.Text = textBox1.Text.Substring(0, textBox1.Text.Length - 1);
            }
        }

        private void button42_Click(object sender, EventArgs e)
        {
            
        }

        private void button49_Click(object sender, EventArgs e)
        {
            textBox1.Text += "sin";
        }

        private void button50_Click(object sender, EventArgs e)
        {
            textBox1.Text += "cos";
        }

        private void button51_Click(object sender, EventArgs e)
        {
            textBox1.Text += "e";
        }

        private void button52_Click(object sender, EventArgs e)
        {
            textBox1.Text += "²";
        }

        private void button53_Click(object sender, EventArgs e)
        {
            textBox1.Text += "³";
        }
    }
}