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C++ > Mathematics Code Examples

Print Fibonacci Series



Print Fibonacci Series

To print Fibonacci series in C++ programming, you have to ask from the user to enter total number of terms that he/she want to print fibonacci series upto the required number. Now to print fibonacci series, first print the starting two number of the Fibonacci series and make a while loop to start printing the next number of the Fibonacci series. Use the three variable say a, b and c. Place b in a and c in b then place a+b in c to print the value of c to make and print Fibonacci series as shown here in the following program.

Following C++ program ask to the user to enter the limit upto which he/she want to print the Fibonacci series:
		
#include<iostream.h>
#include<conio.h>
void main()
{
	clrscr();
	int a=0, b=1, c=0, limit;
	cout<<"Upto How many term ? ";
	scanf("%d",&limit);
	cout<<"Fabonacci Series : "<<a<<" "<<b<<" ";  // first two term
	c=a+b;
	limit=limit-2;   // decrease the limit by 2. since two numbers already printed
	while(limit)
	{
		cout<<c<<" ";
		a=b;
		b=c;
		c=a+b;
		limit--;
	}
	getch();
}

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