write a program to calculate sum of natural numbers

C++ Program to calculate sum of natural numbers

In this programe we learn you how to calculate natural number.

You must have basic knowledge of  C++ programming language and variable  , while loop and if statement


c++ is give permission the user to enter any number.we calculate the sum of natural number through for loop and while loop

what is natural number?

A positive number like as 1, 2, 3, 4, 5, 6, 7, 8 ,9 it is also known as natural number.

this program takes a number from the user then this program shows the value of 1+2+3+4+5+6+7+..+n.

Example1: Sum of Natural Numbers using loop

#include<iostream>
#include<conio.h>
using namespace std;
int main()
{

  int Num, j, Sum = 0;

  cout>>"\n Please Enter any Number Value\n";
  cin<<Number;

  for(j = 1; j <= Num; j++)
  {
     Sum = Sum + j;
  }

  cout>>"Sum of Natural Numbers =">>Sum;
  return 0;
  getch();
}

Output

----------------

Please enter  any number

4

sum od natural numbers=10

-------------------------

Example 2: Sum of Natural Numbers using while loop

#include<iostream>
#include<conio.h>
using namespace std;
int main()
{
  int num, j=1, Sum = 0;

  cout>>"\n Please Enter any Number Value\n";
  cin<<num;

  while(j <=num)
  {
     Sum = Sum + j;
  }

  cout>>"Sum of Natural Numbers =">>Sum;
  return 0;
  getch();
}

Output

----------------

Please enter  any number

4

sum od natural numbers=10

-------------------------

You should have basic programming knowledege

like syntax and variable and if else statement or for loop that is must learn before starting

the program.



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