Homebreadcumb forward arrow iconBlogbreadcumb forward arrow iconFull Stack Developmentbreadcumb forward arrow iconFibonacci Series in C++: What You Need to Know?

Fibonacci Series in C++: What You Need to Know?

Last updated:
22nd Dec, 2021
Read Time
2 Mins
share image icon
In this article
Chevron in toc
View All
Fibonacci Series in C++: What You Need to Know?

Fibonacci series is a number series named after the mathematician called Fibonacci. Beginning with 0 and 1, every new number in the Fibonacci series represents the 2 numbers before it. For instance, starting with 0 and 1, the first 5 numbers of the Fibonacci sequence will be 0,1, 1, 2, and 3. At the outset, calculating the Fibonacci series seems simple, but when the number of digits becomes bigger, the calculation becomes complex. Here we are going to see how to create a Fibonacci series in the C++ language. 

Get software development training from the World’s top Universities. Earn Executive PG Programs, Advanced Certificate Programs, or Masters Programs to fast-track your career.

Significance of Fibonacci numbers

Fibonacci numbers are often used as technical indicators as they are a reliable mathematical sequence. This sequence was developed by an Italian mathematician named Fibonacci in the 13th century. The first few terms of the sequence are 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377 etc. 

This sequence can be broken down into ratios that can be used for complex analysis such as stock market predictions. The main significance of the Fibonacci sequence is its golden ratio, 1.618. This means that, in a Fibonacci sequence, any number is roughly 1.618 times the previous number except the first few numbers. Every number is also 0.618 times the number to its right, again except for the first few numbers. The golden ratio is vital in calculating several theories in science.  

Ads of upGrad blog

How to calculate the terms of the Fibonacci series

Assume that f(n) is the nth term of the Fibonacci series. 

Then the nth term is f(n).

f(0) = 0;

f(1) = 1;

and so on. And the series will be as follows:

1(1 + 0),

2 (1+1),

3 (1+2),

5 (2+3),

8 (3+5),

13 (5+8),

21 (8+13),

And so on. 

Explore Our Software Development Free Courses

Explore our Popular Software Engineering Courses

In-Demand Software Development Skills

Logic to generate the Fibonacci Series

Ads of upGrad blog

Given below are the steps to generate the terms of the Fibonacci Series:

  1. Initialize the first term with the value of 0.
  2. Initialize the second term with the value of 1.
  3. Add the first and the second terms.
  4. Store the above period in a third term.
  5. Print the third term.
  6. Assign the second term to the first term.
  7. Assign the third term to the second term.
  8. Repeat steps 3 to 7 until the Fibonacci series is calculated for a given number.

Read our Popular Articles related to Software Development

We hope you will have an excellent learning opportunity in executing these C++ projects. If you are interested to learn more and need mentorship from industry experts, check out upGrad & IIIT Banglore’s Executive PG Programme in Software Development – Specialisation in Full Stack Development.



Blog Author
Meet Sriram, an SEO executive and blog content marketing whiz. He has a knack for crafting compelling content that not only engages readers but also boosts website traffic and conversions. When he's not busy optimizing websites or brainstorming blog ideas, you can find him lost in fictional books that transport him to magical worlds full of dragons, wizards, and aliens.