🎓 Top 15 Udemy Courses (80-90% Discount): My Udemy Courses - Ramesh Fadatare — All my Udemy courses are real-time and project oriented courses.
▶️ Subscribe to My YouTube Channel (178K+ subscribers): Java Guides on YouTube
▶️ For AI, ChatGPT, Web, Tech, and Generative AI, subscribe to another channel: Ramesh Fadatare on YouTube
1. Introduction
The Fibonacci sequence is an intriguing series of numbers in which each number is the sum of the two preceding ones. Usually, the sequence starts with 0 and 1. Apart from its mathematical intrigue, the Fibonacci sequence is found in numerous natural phenomena and has applications in computer algorithms and financial markets. In this tutorial, we will explore how to craft an R program that generates the Fibonacci sequence for a given length.
2. Program Overview
The program's mission is to prompt the user for the number of terms they want from the Fibonacci sequence.
Post input, the program will display the sequence of that specified length.
3. Code Program
# Function to generate Fibonacci sequence up to n terms
fibonacci <- function(n) {
# Base cases
if (n <= 1) {
return(n)
} else {
return(fibonacci(n-1) + fibonacci(n-2))
}
}
# Ask the user for the number of terms they want
cat("Enter the number of terms for the Fibonacci sequence: ")
num_terms <- as.integer(readLines(n=1))
# Ensure the number of terms is non-negative
if (num_terms <= 0) {
cat("Error: Please enter a positive integer.\n")
} else {
cat("Fibonacci Sequence of", num_terms, "terms:\n")
for (i in 0:(num_terms-1)) {
cat(fibonacci(i), " ")
}
}
Output:
Enter the number of terms for the Fibonacci sequence: 7 Fibonacci Sequence of 7 terms: 0 1 1 2 3 5 8
4. Step By Step Explanation
1. We initiate our program by defining the fibonacci function. This function, employing recursion, calculates the Fibonacci sequence.
fibonacci <- function(n) {
# Base cases
if (n <= 1) {
return(n)
} else {
return(fibonacci(n-1) + fibonacci(n-2))
}
}2. Inside the function, we set our base cases: the Fibonacci value for 0 is 0, and for 1, it's 1.
if (n <= 1) {
return(n)
} 3. For any other number n, the Fibonacci value is the sum of the Fibonacci values of n-1 and n-2.
return(fibonacci(n-1) + fibonacci(n-2))4. The main program segment requests the user's desired number of Fibonacci sequence terms via the cat function.
cat("Enter the number of terms for the Fibonacci sequence: ")5. Using readLines(n=1), the input is captured and, considering its character form, as.integer facilitates its conversion to an integer. This value is stored in the num_terms variable.
num_terms <- as.integer(readLines(n=1))6. A quick validation check ensures the entered number is positive.
if (num_terms <= 0) {
cat("Error: Please enter a positive integer.\n")
}7. If the number is valid, the program employs a loop to calculate and print each term in the Fibonacci sequence up to the specified number of terms.
8. The loop, running from 0 to num_terms-1, leverages the fibonacci function for each term, printing the sequence in a line.
for (i in 0:(num_terms-1)) {
cat(fibonacci(i), " ")
}My Top and Bestseller Udemy Courses. The sale is going on with a 70 - 80% discount. The discount coupon has been added to each course below:
Build REST APIs with Spring Boot 4, Spring Security 7, and JWT
![[NEW] Learn Apache Maven with IntelliJ IDEA and Java 25](https://img-c.udemycdn.com/course/750x422/6852721_b512_2.jpg "[NEW] Learn Apache Maven with IntelliJ IDEA and Java 25")
[NEW] Learn Apache Maven with IntelliJ IDEA and Java 25
ChatGPT + Generative AI + Prompt Engineering for Beginners
Spring 7 and Spring Boot 4 for Beginners (Includes 8 Projects)
Available in Udemy for Business
Building Real-Time REST APIs with Spring Boot - Blog App
Available in Udemy for Business
Building Microservices with Spring Boot and Spring Cloud
Available in Udemy for Business
Java Full-Stack Developer Course with Spring Boot and React JS
Available in Udemy for Business
Build 5 Spring Boot Projects with Java: Line-by-Line Coding
Testing Spring Boot Application with JUnit and Mockito
Available in Udemy for Business
Spring Boot Thymeleaf Real-Time Web Application - Blog App
Available in Udemy for Business
Master Spring Data JPA with Hibernate
Available in Udemy for Business
Spring Boot + Apache Kafka Course - The Practical Guide
Available in Udemy for Business
Comments
Post a Comment
Leave Comment