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 visual_calculator
{
class Methods
{
public int Factorial(int input)
{
int answer
= 0;
int count
= 0;
if (input
> 0)
{
count = 1;
while
(count <= input)
{
if
(count == 1)
{
answer = 1;
count++;
}
else
{
answer = count * answer;
count++;
}
}
}
else
{
MessageBox.Show("Please
enter only a positive integer.");
}
return
answer;
}
public void toBin(int dec)
{
int count
= 0;
int[] bin
= new int[100];
while (dec
> 0)
{
bin[count] = dec % 2; //store
Binary value in array bin
count++;
dec =
dec / 2; //for moving from unit to ten's
or next
}
for (int j
= count - 1; j >= 0; j--)//for loop for printing the array elements in
reverse
Console.Write(bin[j]);
}
//--------------------------------------------------------------------------------------------------------
public void toOct(int dec)
{
int count
= 0;
int[] oct
= new int[100];
while (dec
> 0)
{
oct[count] = dec % 8; //store
octal in oct array
count++;
dec =
dec / 8; //for moving from unit
to ten's or next
}
for (int j = count - 1; j >= 0; j--)//for
loop for printing the array elements in reverse
{
Console.Write(oct[j]);
}
}
//--------------------------------------------------------------------------------------------------------
public int toHex(int dec)
{
int count
= 0;
int[] hex
= new int[100];
while (dec
> 0)
{
hex[count] = dec % 16; //store stuff in array hex
count++;
dec =
dec / 16;
}
for (int j
= count - 1; j >= 0; j--) //for
loop for printing the array elements in reverse
if
(hex[j] < 10) //if
array element is less than 10 then printing the array element
{
Console.Write(hex[j]);
}
else
switch
(hex[j]) //if array element
is greater than 10 then replace 10 with A uptill 15 which is F
{
case 10:
Console.Write('A');
break;
case 11:
Console.Write('B');
break;
case 12:
Console.Write('C');
break;
case 13:
Console.Write('D');
break;
case 14:
Console.Write('E');
break;
case 15:
Console.Write('F');
break;
}
return
hex[count];
}
//------------------------------------------------------------------------------
public int BintoDecimal(int des)
{
int d;
double num
= 0;
for (int i
= 0; des != 0; i++)
{
d =
des % 10;
num +=
(d) * (Math.Pow(2, i)); //Multiplying
number with power of 2 increasing from left to right
des =
des / 10;
}
return Convert.ToInt32(num);
}
public void BintoOct(int oct)
{
toOct(oct);
}
public void BintoHexa(int oct)
{
toHex(oct);
}
//-------------------------------------------------------------------------------
public int OcttoDes(int des)
{
int d;
double num
= 0;
for (int i
= 0; des != 0; i++)
{
d =
des % 10;
num +=
d * (Math.Pow(8, i)); //Multiplying number with power of 8 increasing from left
to right
des =
des / 10;
}
return Convert.ToInt32(num);
}
//-------------------------------------------------------------------------------
}
}
Source code:form1.cs
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 visual_calculator
{
public partial class
CalculateForm : Form
{
int
input1,sum=0,sub=0,pro=0,div=0,fact=0,sin=0,cos=0,tan=0,cosec=0,sec=0,cot=0,des,log,oct,pow,tenpow,bin,squ,ans;
int
destohex,mod;
string
hexValue;
double
answer,trig = 0;
Methods m = new
Methods();
public
CalculateForm()
{
InitializeComponent();
}
private void
SqrtButton_Click(object sender, EventArgs e)
{
double a=double.Parse(textBox3.Text);
textBox3.Text
= Math.Sqrt(a).ToString();
}
private void
ReciprocalButton_Click(object sender, EventArgs e)
{
float a =
0;
a = float.Parse(textBox3.Text);
a = 1 / a;
textBox3.Text = a.ToString();
}
private void
PowerButton_Click(object sender, EventArgs e)
{
pow = 1;
input1 = int.Parse(textBox3.Text);
textBox3.Text = "";
}
private void
TenPowButton_Click(object sender, EventArgs e)
{
tenpow
= 1;
input1 = int.Parse(textBox3.Text);
textBox3.Text = "";
}
private void
DivideButton_Click(object sender, EventArgs e)
{
div = 1;
input1 = Convert.ToInt32(textBox3.Text);
textBox3.Text = "";
}
private void
MultiplyButton_Click(object sender, EventArgs e)
{
pro = 1;
input1 = Convert.ToInt32(textBox3.Text);
}
private void
SubtractButton_Click(object sender, EventArgs e)
{
sub = 1;
input1 = Convert.ToInt32(textBox3.Text);
textBox3.Text = "";
}
private void
AddButton_Click(object sender, EventArgs e)
{
sum = 1;
input1= Convert.ToInt32(
textBox3.Text);
textBox3.Text="";
}
private void
FactButton_Click(object sender, EventArgs e)
{
fact = 1;
input1 = Convert.ToInt32(textBox3.Text);
}
private void
ModButton_Click(object sender, EventArgs e)
{
mod = 1;
input1 = Convert.ToInt32(textBox3.Text);
textBox3.Text = "";
}
private void
ClearButton_Click(object sender, EventArgs e)
{
textBox3.Text = "";
textBox3.Clear();
}
private void
ModulasButton_Click(object sender, EventArgs e)
{
double a =
0;
a = double.Parse(textBox3.Text)
% double.Parse(textBox3.Text);
textBox3.Text= a.ToString();
}
private void
SinButton_Click(object sender, EventArgs e)
{
sin = 1;
trig = Convert.ToDouble(textBox3.Text);
}
private void
OneButton_Click(object sender, EventArgs e)
{
textBox3.Text +="1";
}
private void
TwoButton_Click(object sender, EventArgs e)
{
textBox3.Text += "2";
}
private void
ThreeButton_Click(object sender, EventArgs e)
{
textBox3.Text += "3";
}
private void
button21_Click(object sender, EventArgs e)
{
textBox3.Text += "4";
}
private void
button22_Click(object sender, EventArgs e)
{
textBox3.Text += "5";
}
private void
button23_Click(object sender, EventArgs e)
{
textBox3.Text += "6";
}
private void
button12_Click(object sender, EventArgs e)
{
textBox3.Text += "7";
}
private void
button13_Click(object sender, EventArgs e)
{
textBox3.Text +="8";
}
private void
button14_Click(object sender, EventArgs e)
{
textBox3.Text += "9";
}
private void
ZeroButton_Click(object sender, EventArgs e)
{
textBox3.Text
+= "0";
}
private void
AnsButton_Click(object sender, EventArgs e)
{
if (sum==1)
{
ans =
input1 + Convert.ToInt32(textBox3.Text);
textBox3.Text = ans.ToString();
}
else if(sub==1)
{
ans =
input1 - Convert.ToInt32(textBox3.Text);
textBox3.Text = ans.ToString();
}
else if (div
== 1)
{
ans =
input1 / Convert.ToInt32(textBox3.Text);
textBox3.Text = ans.ToString();
}
else if (pro
== 1)
{
ans =
input1 * Convert.ToInt32(textBox3.Text);
textBox3.Text = ans.ToString();
}
else if(mod==1)
{
ans =
input1 % Convert.ToInt32(textBox3.Text);
textBox3.Text = ans.ToString();
}
else if (fact
== 1)
{
ans =
m.Factorial(int.Parse(textBox3.Text));
textBox3.Text = ans.ToString();
}
else if (pow
== 1)
{
double a =
Convert.ToDouble(input1);
double b =
Convert.ToDouble(textBox3.Text);
answer= Math.Pow(a,b);
textBox3.Text = answer.ToString();
}
else if(tenpow==1)
{
double a=Math.Pow(10,Convert.ToDouble(input1));
textBox3.Text=a.ToString();
}
else if (sin
== 1)
{
answer = Math.Sin(trig);
textBox3.Text = answer.ToString();
}
else if (cos
== 1)
{
answer = Math.Cos(trig);
textBox3.Text = answer.ToString();
}
else if (tan
== 1)
{
answer = Math.Tan(trig);
textBox3.Text = answer.ToString();
}
else if (sec
== 1)
{
answer =
1/Math.Cos(trig);
textBox3.Text = answer.ToString();
}
else if (cosec
== 1)
{
answer = 1
/ Math.Sin(trig);
textBox3.Text = answer.ToString();
}
else if (cot
== 1)
{
answer = 1
/ Math.Tan(trig);
textBox3.Text = answer.ToString();
}
else if (des
== 1)
{
textBox3.Text = ans.ToString();
}
else if
(destohex == 1)
{
textBox3.Text = hexValue;
}
else if (oct
== 1)
{
textBox3.Text = ans.ToString();
}
else if (bin
== 1)
{
textBox3.Text = hexValue;
}
else if (squ
== 1)
{
double a =
Math.Pow(Convert.ToDouble(input1), 2);
textBox3.Text = a.ToString();
}
else if (log
== 1)
{
double a =
Math.Log(trig);
textBox3.Text = a.ToString();
}
}
private void
HexaRadioButton_CheckedChanged(object sender, EventArgs e)
{
destohex =
1;
input1 = int.Parse(textBox3.Text);
hexValue =
input1.ToString("X");
}
private void
OctalRadioButton_CheckedChanged(object sender, EventArgs e)
{
oct = 1;
ans = Convert.ToInt32(textBox3.Text,
8);
}
private void
BinaryRadioButton_CheckedChanged(object sender, EventArgs e)
{
bin = 1;
input1 = int.Parse(textBox3.Text);
hexValue=Convert.ToString(input1,2);
}
private void DecimalRadioButton_CheckedChanged(object
sender, EventArgs e)
{
des = 1;
input1 = int.Parse(textBox3.Text);
ans =
m.BintoDecimal(input1);
}
private void
AButton_Click(object sender, EventArgs e)
{
textBox3.Text += "A";
}
private void
BButton_Click(object sender, EventArgs e)
{
textBox3.Text += "B";
}
private void
CButton_Click(object sender, EventArgs e)
{
textBox3.Text += "C";
}
private void
DButton_Click(object sender, EventArgs e)
{
textBox3.Text += "D";
}
private void
EButton_Click(object sender, EventArgs e)
{
textBox3.Text += "E";
}
private void
FButton_Click(object sender, EventArgs e)
{
textBox3.Text += "F";
}
private void
BackspaceButton_Click(object sender, EventArgs e)
{
textBox3.Text = textBox3.Text.Remove(textBox3.Text.Length - 1, 1);
}
private void
SquareButton_Click(object sender, EventArgs e)
{
squ = 1;
input1 = Convert.ToInt32(textBox3.Text);
textBox3.Text = "";
}
private void
CosButton_Click(object sender, EventArgs e)
{
cos = 1;
trig = Convert.ToDouble(textBox3.Text);
}
private void
TanButton_Click(object sender, EventArgs e)
{
tan = 1;
trig = Convert.ToDouble(textBox3.Text);
}
private void
SecButton_Click(object sender, EventArgs e)
{
sec = 1;
trig = Convert.ToDouble(textBox3.Text);
}
private void
CotanButton_Click(object sender, EventArgs e)
{
cot = 1;
trig = Convert.ToDouble(textBox3.Text);
}
private void
CosecButton_Click(object sender, EventArgs e)
{
cosec = 1;
trig = Convert.ToDouble(textBox3.Text);
}
private void
LogButton_Click(object sender, EventArgs e)
{
log = 1;
trig = Convert.ToDouble(textBox3.Text);
}
}
}
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