C Program to Print Fibonacci Series Program

In this tutorial you will learn about the C Program to Print Fibonacci Series Program and its application with practical example.

C Program to Print Fibonacci Series Program

In this tutorial, we will learn to create a C program that will Print the Fibonacci Series Program using C programming.

Table Of Contents−

C Program to Print Fibonacci Series Program

Prerequisites

Before starting with this tutorial, we assume that you are the best aware of the following C programming topics:

Operators in C Programming.
Basic Input and Output function in C Programming.
Basic C programming.
While loop in C Programming.
Functions in C Programming.

What is Fibonacci Series?

The Fibonacci series is a series that is strongly related to Binet’s formula (golden ratio). In the Fibonacci series, the series starts from 0, 1 and then the third value is generated by adding those numbers.

Algorithm:-

STEP 1: START

STEP 2: INITIALIZE n

STEP 3: Sending the message to inter the value of n from user

STEP 4: Grabbing the n number element from the user

STEP 5: Using that number in for loop and calculations

STEP 6: Generating the Fibonacci series

STEP 7: Printing the series.

STEP 8: Return 0.

STEP 10: END.

STEP 1: START

STEP 2: INITIALIZE n

STEP 3: Sending the message to inter the value of n from user

STEP 4: Grabbing the n number element from the user

STEP 5: Using that number in for loop and calculations

STEP 6: Generating the Fibonacci series

STEP 7: Printing the series.

STEP 8: Return 0.

STEP 10: END.

Programs to Generate Fibonacci Series:-

In this program, we take the number of elements for the series from the user. Then we will generate the Fibonacci series using the while loop. At last, we will print the series using the print function. The code for the program is given below.

Program:-

Program to Generate Fibonacci Series

#include <stdio.h>//including the header files.
int main() //body of the main function.
{
  //Declaring the required variables for the program
  int t1 = 0, t2 = 1, nterm = 0, n;
  //Taking the input from the user.
  printf("Enter a positive number: ");
  scanf("%d", &n);

  // displays the first two terms which is always 0 and 1
  printf("Fibonacci Series: %d, %d, ", t1, t2);
  nterm = t1 + t2;
  //Generating the fibonacci series.
  while (nterm <= n) 
  {
    //Printing the series from the first position to n terms
    printf("%d, ", nterm);
    t1 = t2;
    t2 = nterm;
    nterm = t1 + t2;
  }

  return 0;
}

#include <stdio.h>//including the header files.

int main() //body of the main function.

{

//Declaring the required variables for the program

int t1 = 0, t2 = 1, nterm = 0, n;

//Taking the input from the user.

printf("Enter a positive number: ");

scanf("%d", &n);

// displays the first two terms which is always 0 and 1

printf("Fibonacci Series: %d, %d, ", t1, t2);

nterm = t1 + t2;

//Generating the fibonacci series.

while (nterm <= n)

{

//Printing the series from the first position to n terms

printf("%d, ", nterm);

t1 = t2;

t2 = nterm;

nterm = t1 + t2;

}

return 0;

}

Output:-

In the above program, we have first initialized the required variable

t1 = it will hold the integer value.
t2 = it will hold the integer value.
nterm = it will hold the integer value.
n = it will hold the integer value.
i = it will hold the integer value to control the array.

Taking the input number of terms.

Generating the Fibonacci series using the loops.

Program Code for Printing the series.

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C Program to Print Fibonacci Series Program