#3 Top Techniques To Check Fibonacci Series In Python

Python is the most preferred programming language nowadays, and its users are experimenting with a variety of unique functions to complete tasks quickly. One of these is the Fibonacci sequence. It has been observed that some traders feel Fibonacci numbers are essential in finance since they are used to create percentages (%) and ratios that traders use.

You've at the correct place if you're a Python user looking for information on the Fibonacci series in Python. Today, we'll explain to you how to get the Fibonacci series using a variety of ways. 

What exactly is the Fibonacci sequence?

A Fibonacci sequence is a group of numbers that starts with a zero or one, followed by the rule. Each value is equivalent to the total sum of the two numbers that come before it.

Always keep in mind that the first two numbers in each Fibonacci series are always 0 and 1.

Do you know how to tell if a number is Fibonacci or not?

Yes, you heard that right.

Will you respond if I give you a random number and ask you whether it is a Fibonacci number or not? You might not think so! Even maths students are puzzled by it. But no longer!

We'll assist you with a quick Python program to determine whether or not a number is a Fibonacci number!

Output:



1 is a Fibonacci Number

2 is a Fibonacci Number

3 is a Fibonacci Number

4 is a not Fibonacci Number 

5 is a Fibonacci Number

6 is a not Fibonacci Number 

7 is a not Fibonacci Number 

8 is a Fibonacci Number

9 is a not Fibonacci Number 

10 is a not Fibonacci Number 

11 is a not Fibonacci Number 

12 is a not Fibonacci Number 

13 is a Fibonacci Number

14 is a not Fibonacci Number 

15 is a not Fibonacci Number

The top three Python methods for finding the Fibonacci series

In Python, there are several ways to find the Fibonacci series. However, the three strategies are thought to be the most effective. Let's go over each one one by one. 

• While Loop Method

It's being used to run statement blocks that keep repeating the condition until it's satisfying. If the expression or the statement is false, the loop will stop the iteration of the statement and exit instantaneously. While loop falls under the topic of endless iteration.

Let's look at an example of applying the WHILE loop to find the Fibonacci series in Python.

Output:

How many terms the user wants to print? 5

The fibonacci sequence of the numbers is:

0

1

1

2

3

• For loop

It is useful to use the for loop to iterate over the sequences. The user can execute a sequence of instructions for the elements in the tuple, set, and list once using the for loop. 

In Python, the for loop technique may be used to find the Fibonacci sequence. Let's have a look at how you may utilize it for this.

Output:

Enter the Range Number: 7

0

1

1

2

3

5

8

• Method of Recursion

Recursion is the technique by which a function calls itself, either indirectly or directly. The Fibonacci sequence may be readily obtained in Python using this approach.

Let's look at an example:

Output:

Enter the Range Number: 9

0

1

1

2

3

5

8

13

21

Is it feasible to obtain the Fibonacci sequence using Python functions? 

Yes, you can do that with the lambda function. This is an "Anonymous function" that works in the same way as conventional Python functions. The only distinction between this function and others is that it can be declared without a name. On the other hand, normal functions are declared using the def keyword, whereas anonymous functions are defined with the lambda keyword.

So, how do you obtain the Fibonacci series in Python using it? Let's look at a Python program to see how it works.

• The lambda & reduce technique

Fibonacci Series In Python Using Lambda & Reduce Method

Output:

[0, 1, 1, 2, 3, 5, 8]

Interpretation:

There are two parameters in the output list: 0 and 1. Now put them together like x[-1], which equals 0, and x[-2], which equals 1, where variable x is added. The reduce() method is used to reduce the result to a single cumulative value by calling the same function for each iteration.

• The lambda and map functions

Using Lambda and Map Functions in Python to Create Fibonacci Series

Output:

[0, 1, 2, 3, 5, 8, 13, 21, 21]

Interpretation:

We'll use the fib_list list, which already has 0 and 1. It is utilized as input in the following iteration. The result of the addition will be written to the list.

Conclusion

Python is now one of the most popular programming languages, with a huge following among programmers. That is why many people, including non-programmers, are attempting to master this programming language. Alternative approaches or procedures to discover the Fibonacci sequence in Python have been requested by several of our users.

In the preceding section, we discussed three methods for determining the series. Experiment with the programs to improve your Python abilities.

Please contact our experts if you have any more questions or would want to learn more about Python. We'll assist you in finding the best answer to your questions. Also, to boost your understanding, acquire the best Python homework help from programming assignment helpers.