Fibonacci series in C.

 Fibonacci series  :  Fibonacci series is a sequence of numbers, starting with zero and one is create by adding or sum of previous two numbers.

Series like 0, 1, 1, 2, 3, 5, 8, 13, 21 ......................

In this c program I can take initial value a = 1 and b = 1

// program of fibonacci series

#include<stdio.h>

#include<conio.h>

int main()

{

    int a,b,c,term;

    a=1;b=1;

    printf("Enter number of term you print:\n");

    scanf("%d",&term);

    printf("%d\t%d\t",a,b);

    while(term-2>0)

    {

        c=a+b;

        a=b;

        b=c;

        printf("%d\t",c);

        term--;

    }

    return 0;

}

Output :-

Enter number of term you print: 8 1 1 2 3 5 8 13 21

same by using function

// program of fibonacci series

by using function 1,1,2,3,5,8....

#include<stdio.h>

#include<conio.h>

int fibo(int,int); // prototype

deleration

int main()

{

    int a,b,c,term;

    a=1;b=1;

    printf("Enter number of term

you print:\n");

    scanf("%d",&term); // enter

term you can print

    printf("%d\t%d\t",a,b); // print

first two term

    while(term-2>0) // work at term -2

terms like 5 when 5-2 =3

    {

        c=fibo(a,b); //function call

        a=b;

        b=c;

        printf("%d\t",c);

        term--;

    }

    return 0;

}

int fibo(int x,int y)//function defination.

{

    return(x+y);

}

Output :-

Enter number of term you print: 8 1 1 2 3 5 8 13

21

******* Thank you ******