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https://github.com/anower77/c-sharp-program
1. 1(3)+2(3)+3(3)+...n find sum series
https://github.com/anower77/c-sharp-program
c-sharp character-recognition factorial-calculation fibonacci-numbers prime prime-numbers quadratic-equations series summation swapping-numbers triangle triangle-area-calculate
Last synced: 7 days ago
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1. 1(3)+2(3)+3(3)+...n find sum series
- Host: GitHub
- URL: https://github.com/anower77/c-sharp-program
- Owner: Anower77
- Created: 2023-01-21T17:02:17.000Z (about 2 years ago)
- Default Branch: master
- Last Pushed: 2023-01-29T09:22:44.000Z (almost 2 years ago)
- Last Synced: 2023-08-01T07:40:56.705Z (over 1 year ago)
- Topics: c-sharp, character-recognition, factorial-calculation, fibonacci-numbers, prime, prime-numbers, quadratic-equations, series, summation, swapping-numbers, triangle, triangle-area-calculate
- Language: C#
- Homepage:
- Size: 271 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
## 1. which number is greatest among three numbers
___
```c#
using System;
public class Exercise8
{
public static void Main()
{
int num1, num2, num3;
// input data
Console.Write("Input the 1st number :");
num1 = Convert.ToInt32(Console.ReadLine());
Console.Write("Input the 2nd number :");
num2 = Convert.ToInt32(Console.ReadLine());
Console.Write("Input the 3rd number :");
num3 = Convert.ToInt32(Console.ReadLine());
// condition
if (num1 > num2)
{
if (num1 > num3)
{
Console.Write("1st Number is the greatest. \n\n");
}
else
{
Console.Write("3rd Number is the greatest. \n\n");
}
}
else if (num2 > num3)
Console.Write("2nd Number is the greatest. \n\n");
else
Console.Write("3rd Number is the greatest. \n\n");
}
}
```
## Example
```mermaid
graph TD;
A-->B;
A-->C;
B-->D;
C-->B;
B-->D;
C-->C;
C-->A;
A-->D;
```
## 2. Triabgle area calculate
___
```c#
using System;
public class AreaOfTriangle
{
public static void Main()
{
Console.Write("Enter the Base:");
double Base = Convert.ToDouble(Console.ReadLine());
Console.Write("Enter the Height:");
double Height = Convert.ToDouble(Console.ReadLine());
double Area = (Base * Height) / 2;
Console.Write("Area of a Triangle = " + Area);
Console.ReadKey();
}
}
```
## 3. Swapping number
___
```c#
using System;
namespace swappin_number
{
class swapping_number
{
public static void Main(string[] args)
{
int a = 5;
int b = 10;
int c = a;
a = b;
b = c;
Console.WriteLine("swapping a :" + a);//swapping : 10
Console.WriteLine("swapping b :" + b);//swapping : 5
}
}
}
```
## 4. Quadratic equation ax2+bx+c=0
___
```c#
using System;
public class Exercise11
{
public static void Main()
{
// variable declaration
int a,b,c;
double d, x1,x2;
Console.Write("Input the value of a : ");
a = Convert.ToInt32(Console.ReadLine());
Console.Write("Input the value of b : ");
b = Convert.ToInt32(Console.ReadLine());
Console.Write("Input the value of c : ");
c = Convert.ToInt32(Console.ReadLine());
// quadratic law
d=b*b-4*a*c;
if(d==0)
{
Console.Write("Both roots are equal.\n");
x1=-b/(2.0*a);
x2=x1;
Console.Write("First Root1= {0}\n",x1);
Console.Write("Second Root2= {0}\n",x2);
}
else if(d>0)
{
Console.Write("Both roots are real and diff-2\n");
x1=(-b+Math.Sqrt(d))/(2*a);
x2=(-b-Math.Sqrt(d))/(2*a);
Console.Write("First Root1= {0}\n",x1);
Console.Write("Second Root2= {0}\n",x2);
}
else
Console.Write("Root are imeainary;");
}
}
```
## 5. Prime number 1 to 50
___
```c#
using System;
public class Exercise34
{
public static void Main()
{
//variable declaration
int num, i, ctr, first_num, second_num;
//Input prime number
Console.Write("Input 1st number: ");
first_num = Convert.ToInt32(Console.ReadLine());
Console.Write("Input 2nd number: ");
second_num = Convert.ToInt32(Console.ReadLine());
Console.Write("Prime numbers between {0} and {1} are : \n",first_num,second_num);
//Condition & Loop
for(num = first_num; num <= second_num; num++)
{
ctr = 0;
for(i = 2; i <= num/2; i++)
{
if(num%i == 0){
ctr++;
break;
}
}
if(ctr==0 && num!= 1)
Console.Write("{0} ",num);
}
Console.Write("\n");
}
}
```
## 6. Fibonacci series
___
```c#
using System;
public class FibonacciExample
{
public static void Main(string[] args)
{
int n1=0,n2=1,n3,i,number;
Console.Write("Enter the number of elements: ");
number = int.Parse(Console.ReadLine());
Console.Write(n1+" "+n2+" "); //printing 0 and 1
for(i=2; i='a' && str[i]<='z') || (str[i]>='A' && str[i]<='Z'))
{
alphabet++;
}
else if(str[i]>='0' && str[i]<='9')
{
number++;
}
else
{
specialChar++;
}
i++;
}
Console.WriteLine("Aphabet is = {0}\n ", alphabet);
Console.WriteLine("Number is = {0}\n" , number);
Console.WriteLine("Special Character is = {0}\n", specialChar);
}
}
}
```
## 10. 2+4+6+...n find sum series
___
```c#
using System;
class Program {
static void Main(string[] args) {
int n = 10; // change this to the desired value of n
int result = 0;
for (int i = 2; i <= n; i += 2) {
result += i;
}
Console.WriteLine("Summation series: 2+4+6+...+" + n + " = " + result);
}
}
```
## 11. 1+3+5+...n find sum series
___
```c#
using System;
class Program {
static void Main(string[] args) {
int n = 10; // change this to the desired value of n
int result = 0;
for (int i = 1; i <= n; i += 2) {
result += i;
}
Console.WriteLine("Summation series: 1+3+5+...+" + n + " = " + result);
}
}
```
## 12. 1+2+3+4+...n find sum series
___
```c#
using System;
class Program {
static void Main(string[] args) {
int n = 10; // change this to the desired value of n
int result = 0;
for (int i = 1; i <= n; i++) {
result += i;
}
Console.WriteLine("Summation series: 1+2+3+4+...+" + n + " = " + result);
}
}
```
## 13. 1(3)+2(3)+3(3)+...n find sum series
___
```c#
using System;
class Program {
static void Main(string[] args) {
int n = 3; // change this to the desired value of n
int result = 0;
for (int i = 1; i <= n; i++) {
result += i * i * i;
}
Console.WriteLine("Summation series: 1^3 + 2^3 + 3^3 + ... + " + n + "^3 = " + result);
}
}
```
## 14. 1(2)+2(2)+3(2)+...n find sum series
___
```c#
using System;
class Program {
static void Main(string[] args) {
int n = 3; // change this to the desired value of n
int result = 0;
for (int i = 1; i <= n; i++) {
result += i * i;
}
Console.WriteLine("Summation series: 1^2 + 2^2 + 3^2 + ... + " + n + "^2 = " + result);
}
}
```