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Fibonacci Series or Sequence in C++

Today in C++ Tutorial we will learn How to write C++ program to find Fibonacci Series.The Fibonacci Sequence can be written as 0,1,1,2,3,5,8,13........

What is Fibonacci Series or Sequence

The Fibonacci numbers or Fibonacci series or Fibonacci sequence has first two numbers equal to 1 and 0 and the further each number is consist of the addition of previous two numbers.

1st number = 0
2nd number = 1
3rd number = 0+1= 1
4th number = 1+1= 2
5th number = 1+2= 3
And so on.


The Fibonacci Sequence can be written as 0,1,1,2,3,5,8,13........

Fibonacci Series Video Tutorial

Fibonacci Series program logic 

  • Before writing C++ Program we must know that what is Fibonacci Series and in what sequence numbers occurs.
  • After understanding mathematically Fibonacci series completely we write it in the form of C++ Program.
  • As the Fibonacci series is infinite but we can't make a program that display an infinite output.
  • In below program we take input the range in integer up-to which Fibonacci series will be displayed.
  • For this purpose a for loop has been taken which starts from 0 and terminates less than range for example if Input is 5 then for loop will run from 0 to 4.
  • In for loop if variable 'c' is less or equal than 1 in this case if statement will be executed and if 'c' is greater than 1 else part will be executed for greater than 1.
e.g., if range=2 than only
if part will run. let input is equal to 5
Before loop variables values

How to write C++ program to find Fibonacci Series

Lets have a Look at C++ program to find Fibonacci Series upto given Limit.
This C++ program use simple logic to get the concept of writing code in C++ for Fibonacci Series.

C++ program to find Fibonacci Series

#include<iostream>
using namespace std;
int main()
{
int range, first = 0, second = 1, result=0;
cout << "Enter Range for Terms of Fibonacci Sequence: ";
cin >> range;
cout << "Find Fibonicci Series upto : " << range << " Terms "<< endl;
for ( int c = 0 ; c < range ; c++ )
{
if ( c <= 1 )
result = c;
else
{
result = first + second;
first = second;
second = 
result;
}
cout <<
result <<" ";
}
return 0;
}

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Tags: c, c++, c++ tutorials, Programming in C++, write a c++ program, Fibonacci Series, Fibonacci series in c++, Fibonacci series in cplusplus, Fibonacci series logic, program to find Fibonacci series, what is Fibonacci series, 

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