https://github.com/omid-bakeri/advanced-calculator

This Desktop app is a Advanced Calculator create with c# and SharpDevelop
https://github.com/omid-bakeri/advanced-calculator

csharp csharp-code csharp-core csharp-library

Last synced: 10 months ago
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This Desktop app is a Advanced Calculator create with c# and SharpDevelop

• Host: GitHub
• URL: https://github.com/omid-bakeri/advanced-calculator
• Owner: omid-bakeri
• Created: 2022-07-30T08:12:46.000Z (almost 4 years ago)
• Default Branch: main
• Last Pushed: 2022-07-30T08:14:20.000Z (almost 4 years ago)
• Last Synced: 2025-01-11T10:42:44.818Z (over 1 year ago)
• Topics: csharp, csharp-code, csharp-core, csharp-library
• Homepage:
• Size: 141 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# Advanced-Calculator

This Desktop app is a Advanced Calculator create with c# and SharpDevelop

/*

 * Created by SharpDevelop.

 * Programmer = Omid Bakeri

 * Project = Advanced Calculator

 * User: LaptopYar

 * Date: 15/04/1400

 * Time: 11:52

 * 

 * To change this template use Tools | Options | Coding | Edit Standard Headers.

 */

 

 

using System;

using System.Collections.Generic;

using System.Drawing;

using System.Windows.Forms;

using System.Globalization;

namespace Advanced_Calculator

{

	public partial class MainForm : Form

	{

		double H=0;

		double Division=0;

		double Minus=0;

		double Sum=0;

		double Multiple=0;

		double Equals=0;

		double XY=0;

		double Mod=0;

		

		char corporation;

		

		

		// Div //

		double divMath1;

		double divMath2;

		double divRes;

		string Svdiv1;

		string Svdiv2;

		double eqDiv1;

		double eqDiv2;

		double fiDiv;

		// Div //

		

		

		

		public MainForm()

		{

			

			InitializeComponent();

		}

		

		bool f1=false , f2=false , f3=false , f4=false , f5=false , f6=false , f7=false , f8=false , f9=false , f0=false;

		

		void Button24_Click(object sender, EventArgs e)

		{

			txt_calc.Text = txt_calc.Text + btn_one.Text;

			f1=true;

		}

		

		void Btn_two_Click(object sender, EventArgs e)

		{

			txt_calc.Text = txt_calc.Text + btn_two.Text;

			f2=true;

		}

		

		void Btn_three_Click(object sender, EventArgs e)

		{

			txt_calc.Text = txt_calc.Text + btn_three.Text;

			f3=true;

		}

		

		void Btn_four_Click(object sender, EventArgs e)

		{

			txt_calc.Text = txt_calc.Text +  btn_four.Text;

			f4=true;

		}

		

		void Btn_five_Click(object sender, EventArgs e)

		{

			txt_calc.Text = txt_calc.Text +  btn_five.Text;

			f5=true;

		}

		

		void Btn_six_Click(object sender, EventArgs e)

		{

			txt_calc.Text = txt_calc.Text +  btn_six.Text;

			f6=true;

		}

		

		void Btn_seven_Click(object sender, EventArgs e)

		{

			txt_calc.Text = txt_calc.Text + btn_seven.Text;

			f7=true;

		}

		

		void Btn_eight_Click(object sender, EventArgs e)

		{

			txt_calc.Text = txt_calc.Text +  btn_eight.Text;

			f8=true;

		}

		

		void Btn_nine_Click(object sender, EventArgs e)

		{

			txt_calc.Text = txt_calc.Text +  btn_nine.Text;

			f9=true;

		}

		

		void Btn_ziro_Click(object sender, EventArgs e)

		{

			txt_calc.Text = txt_calc.Text +  btn_ziro.Text;

			f0=true;

		}

		

		void Btn_c_Click(object sender, EventArgs e)

		{

			txt_calc.Clear();

			txt_calc.ForeColor = Color.DarkBlue;

		}

		

		void Btn_back_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				txt_calc.Text = txt_calc.Text.Remove(txt_calc.Text.Length -1);

			}

			

		}

		

		void Btn_xpow2_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			if(txt_calc.Text!="")

			{

				double powx2Math;

			    double powx2Compute;

			    string pxSave;

			    

				powx2Math    =  double.Parse(txt_calc.Text);

				pxSave = txt_calc.Text;

				txt_calc.Clear();

				

				powx2Compute =  Math.Pow(powx2Math , 2);

				string powOperatorXRes;

				powOperatorXRes = powx2Compute.ToString();

				    

				//corporation = "xpow2";

				txt_calc.Text = pxSave + "^" + 2 + "=" + powOperatorXRes;

				txt_calc.ForeColor = Color.DarkGreen;

				

			}

		}

		

//		void Btn_xpowy_Click(object sender, EventArgs e)

//		{	

//			if(txt_calc.Text=="")

//			{

//				MessageBox.Show("برای انجام این عملیات دو عدد را وارد نمایید" , "خطا" ,  MessageBoxButtons.OK , MessageBoxIcon.Warning);

//			}

//			

//			if(txt_calc.Text!="")

//			{

//				corporation = "xpy";

//				double powMathx;

//				double powMathy;

//				double powResxy;

//				

//				powMathx = double.Parse(txt_calc.Text);

//				txt_calc.Clear();

//				

//				

//				//powMathy = double.Parse(txt_calc.Text);

//				

//				//powResxy = Math.Pow(powMathx , double.Parse(txt_calc.Text));

//			}

//		}

		

		

		void Btn_sin_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")	

			{

				double sinMath;

				double sinRes;

				string sinSave;

				

				sinMath = double.Parse(txt_calc.Text);

				sinSave= txt_calc.Text;

				

				txt_calc.Clear();

				

				sinRes = Math.Sin(sinMath);

				txt_calc.Text = "sin" + "(" +  sinSave + ")" + "=" +  sinRes.ToString();

				txt_calc.ForeColor = Color.DarkGreen;

			}

		}

		

		

		void Btn_cos_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")	

			{

				double cosMath;

				double cosRes;

				string cosSave;

				

				cosMath = double.Parse(txt_calc.Text);

				cosSave = txt_calc.Text;

				txt_calc.Clear();

				

				cosRes = Math.Cos(cosMath);

				txt_calc.Text = "cos" + "(" + cosSave + ")" + "=" + cosRes.ToString();

				txt_calc.ForeColor = Color.DarkGreen;

			}

			

		}

		

		void Btn_tan_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")	

			{

				double tanMath;

				double tanRes;

				string tanSave;

				

				tanMath = double.Parse(txt_calc.Text);

				tanSave= txt_calc.Text;

				txt_calc.Clear();

				

				tanRes = Math.Tan(tanMath);

				txt_calc.Text = "tan" + "(" + tanSave + ")" + "=" +   tanRes.ToString();

				txt_calc.ForeColor = Color.DarkGreen;

			}

		}

		

		void Btn_rad_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				double radMath;

				double radRes;

				string radSave;

				

				radMath = double.Parse(txt_calc.Text);

				radSave = txt_calc.Text;

				txt_calc.Clear();

				

				radRes  = Math.Sqrt(radMath);

				txt_calc.Text = "√" + "(" + radSave  + ")" + "=" +  radRes.ToString();

				txt_calc.ForeColor = Color.DarkGreen;

				

			}

		}

		

		void Btn_10powx_Click(object sender, EventArgs e)

		{

			

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				double powTenMath;

				double powTenRes;

				string TenSave;

				

				

				powTenMath = double.Parse(txt_calc.Text);

				TenSave = txt_calc.Text;

				txt_calc.Clear();

				

				powTenRes = Math.Pow(10 , powTenMath);

				txt_calc.Text = 10 + "^" + TenSave + "=" + powTenRes.ToString();

				txt_calc.ForeColor = Color.DarkGreen;

			}

		}

		

		void Btn_log_Click(object sender, EventArgs e)

		{	

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				double mathLog;

				double mathRes;

				

				mathLog = double.Parse(txt_calc.Text);

				mathRes = Math.Log10(mathLog);

				

				txt_calc.Text = "log" + "(" + mathLog.ToString() + ")" + "=" + mathRes.ToString();

				txt_calc.ForeColor = Color.DarkGreen;

			}

		}

		

		void Btn_exp_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				double mathExp;

				double mathRes;

				string expSave;

				

				mathExp = double.Parse(txt_calc.Text);

				expSave = txt_calc.Text;

				txt_calc.Clear();

				

				mathRes = Math.Exp(mathExp);

				

				

				txt_calc.Clear();

				

				txt_calc.Text = mathRes.ToString();

				

				txt_calc.Text = "exp" + "(" + expSave + ")" + "=" + mathRes.ToString();

				txt_calc.ForeColor = Color.DarkGreen;

			}

		}

		

		

		void Btn_nfactorial_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				 int mathFact;

				 int mathRes=1;

				//int finalRes;

				string mathFinal;

				

				

				mathFact  =  int.Parse(txt_calc.Text);

				mathFinal = txt_calc.Text;

				

				txt_calc.Clear();

				

				 int i;

				

				for(i=mathFact ; i>=1 ; i--)

				{

					mathRes = mathRes * i ;  //5   

				}

				

				txt_calc.Text = "fact" + "(" + mathFinal + ")" + "=" + mathRes.ToString();

				txt_calc.ForeColor = Color.DarkGreen;

			}

		}

		

		void Btn_xpow3_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				

				double xThreeMath;

				double xThreeRes;

				string saveNum;

				

				xThreeMath = double.Parse(txt_calc.Text);

				saveNum = txt_calc.Text;

				txt_calc.Clear();

				

				xThreeRes = Math.Pow(xThreeMath , 3);

				

				txt_calc.Text = "cube " + "(" +  saveNum +  ")" + "=" + xThreeRes.ToString();

				txt_calc.ForeColor = Color.DarkGreen;

			}

		}

		

		void Btn_xnum_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				txt_calc.ForeColor = Color.DarkRed;

				double xMath;

				double xRes;

				double xNum;

				

				string xSave;

				

				xMath = double.Parse(txt_calc.Text);

				xSave = txt_calc.Text;

				xNum = double.Parse(xSave);

				

				

				txt_calc.Clear();

				

				xRes = (1)/(xNum) ;

				

				txt_calc.Text = 1 + "/" + "("  + xNum.ToString()  + ")" + "=" + xRes;

				txt_calc.ForeColor = Color.DarkGreen;

			}

		}

		

		void Btn_ln_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				double lnMath;

				double lnRes;

				

				lnMath = double.Parse(txt_calc.Text);

				lnRes = 2.303 * Math.Log10(lnMath);

				

				txt_calc.Clear();

				

				txt_calc.Text = "ln" + "(" + lnMath + ")"  + "=" + lnRes.ToString();

				txt_calc.ForeColor =Color.DarkGreen;

				

				

			}

			

		}

		

		void Btn_pi_Click(object sender, EventArgs e)

		{

			txt_calc.Text = "3.1415926535897932384626433832795";

			txt_calc.ForeColor=Color.DarkGreen;

		}

		

		void Btn_epowx_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				double piMath;

				double piRes;

				string piSave;

				

				double pi = 2.71828;

				double piRex;

				

				piMath = double.Parse(txt_calc.Text);

				piSave = txt_calc.Text;

				piRex = double.Parse(piSave);

				

				txt_calc.Clear();

				

				piRes = Math.Pow( pi , piRex);

				

				txt_calc.Text = "e" + "^" + "(" + piSave + ")" + "=" + piRes.ToString();

				txt_calc.ForeColor = Color.DarkGreen;

			}

		}

		

		void Btn_pm_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				double pmmathd;

				pmmathd = double.Parse(txt_calc.Text);

				

				txt_calc.Text = (-pmmathd).ToString();

			}

		}

		

		void Btn_aopen_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				txt_calc.Text = btn_aopen.Text + txt_calc.Text;

			}

		}

		

		void Btn_aclose_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				txt_calc.Text = btn_aclose.Text + txt_calc.Text;

			}

		}

		

		void Btn_slash_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				txt_calc.Text = txt_calc.Text + btn_slash.Text ; 

			}

		}

		

		void Btn_div_Click(object sender, EventArgs e)

		{

	

			if(txt_calc.Text=="")

			{

				MessageBox.Show("نامعتبر", "خطا", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				corporation ='/';

				Division += Convert.ToDouble(txt_calc.Text);

				txt_calc.Clear();

			}

		}

		

		void Btn_minus_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("نامعتبر", "خطا", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				corporation ='-';

				Minus +=Convert.ToDouble(txt_calc.Text);

				txt_calc.Clear();

			}

		}

		

		void Btn_plus_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("نامعتبر", "خطا", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				Sum += Convert.ToDouble(txt_calc.Text);

				corporation ='+';

				txt_calc.Clear();

				

			}

		}

		

		void Btn_multiple_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("نامعتبر", "خطا", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				Multiple += Convert.ToDouble(txt_calc.Text);

				corporation = '*';

				

				txt_calc.Clear();

			}

		}

		

		

		void Btn_result_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("نامعتبر", "خطا", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(corporation=='/')

			{

				H+= double.Parse(txt_calc.Text);

				double divRes;

				

				divRes = Division / H;

				

				txt_calc.Clear();

				

				txt_calc.Text = Division + "÷" + H + "=" + divRes.ToString();

                txt_calc.ForeColor = Color.DarkGreen;

                

				Division = '\0';

				H = '\0';

				

				

			}

			

			if(corporation == '-')

			{

				H+= double.Parse(txt_calc.Text);

				double minuRes;

				

				minuRes = Minus - H;

				txt_calc.Clear();

				

				txt_calc.Text = Minus + "-" + H  + "=" + minuRes.ToString();

				txt_calc.ForeColor = Color.DarkGreen;

				

				Minus = '\0';

				H = '\0';

			}

			

			if(corporation =='*')

			{

				H += Convert.ToDouble(txt_calc.Text);

				double multRes;

				

				multRes = Multiple * H ; 

				

				txt_calc.Clear();

				

				txt_calc.Text = Multiple + "*" + H + "=" + multRes.ToString();

				txt_calc.ForeColor = Color.DarkGreen;

				

				Multiple = '\0';

				H = '\0';

			}

			

			if(corporation == '+')

			{

				H+= Convert.ToDouble(txt_calc.Text);

				double sumRes;

				

				sumRes = Sum + H ;

				

				txt_calc.Clear();

				

				txt_calc.Text = Sum + "+" + H + "=" + sumRes.ToString();

				txt_calc.ForeColor = Color.DarkGreen;

				

				Sum = '\0';

				H = '\0';

			}

			

			if(corporation == 'c')

			{

				H += Convert.ToDouble(txt_calc.Text);

				double xyRes;

				xyRes = Math.Pow(XY  , H );

				

				txt_calc.Clear();

				

				txt_calc.Text = XY + "^" + "(" + H + ")" + "=" + xyRes.ToString();

				txt_calc.ForeColor = Color.DarkGreen;

				

				

				XY = '\0';

				H = '\0';

				

			}

			

		}

		

		

		void Btn_mod_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				double cotMath;

				double cotRes;

				string absSave;

				

				cotMath = double.Parse(txt_calc.Text);

				absSave = txt_calc.Text;

				txt_calc.Clear();

				

				cotRes = Math.Abs(cotMath);

				

				txt_calc.Clear();

				

				txt_calc.Text = "abs" + "(" + absSave  + ")" + "=" + cotRes.ToString();

				txt_calc.ForeColor = Color.DarkGreen;

			}

		}

		

		void BtnXY_Click(object sender, EventArgs e)

		{

			if(txt_calc.Text=="")

			{

				MessageBox.Show("لطفا یک عدد را وارد نمایید.", "تذکر", MessageBoxButtons.OK, MessageBoxIcon.Warning,

                MessageBoxDefaultButton.Button1, MessageBoxOptions.RightAlign | MessageBoxOptions.RtlReading);

			}

			

			if(txt_calc.Text!="")

			{

				XY += Convert.ToDouble(txt_calc.Text);

				corporation ='c';

				txt_calc.Clear();

				

			}

		}

		

	}

}