1. Introduction
The Fibonacci sequence is a series of numbers where a number is found by adding up the two numbers before it. Starting with 0 and 1, the sequence goes 0, 1, 1, 2, 3, 5, 8, and so forth. Each number (after the first two) is the sum of the two preceding ones. This sequence has been studied extensively in mathematics and has applications in various fields like computer algorithms, stock market analysis, and even in art and nature.
In this guide, we'll be creating a Swift program that generates the Fibonacci series up to a given number of terms.
2. Program Overview
The objective of our Swift program is to produce the Fibonacci series up to a specified number of terms. For example, if we want the first 6 terms, the output would be 0, 1, 1, 2, 3, 5.
3. Code Program
// Number of terms to display from Fibonacci sequence let numberOfTerms = 6 if numberOfTerms <= 0 { print("Please enter a positive integer.") } else if numberOfTerms == 1 { print("Fibonacci series up to \(numberOfTerms) terms: 0") } else { var num1 = 0 var num2 = 1 var counter = 0 print("Fibonacci series up to \(numberOfTerms) terms:") while counter < numberOfTerms { print(num1) let num = num1 + num2 num1 = num2 num2 = num counter += 1 } }
Output:
Fibonacci series up to 6 terms: 0 1 1 2 3 5
4. Step By Step Explanation
1. let numberOfTerms = 6: This line sets how many terms from the Fibonacci series we want to display.
2. The first two conditional checks handle edge cases:
- If the entered number is less than or equal to 0, it prompts the user to enter a positive number.- If the number of terms is 1, it directly displays the first term of the Fibonacci series: 0.
3. var num1 = 0 and var num2 = 1: These two variables hold the two currently last numbers in the series.
4. The while counter < numberOfTerms loop is where the magic happens. For each iteration:
- It prints the current number (num1).
- It computes the next number in the series as the sum of num1 and num2.
- It then adjusts num1 and num2 for the next iteration.
- It increments the counter to keep track of how many terms have been printed.
Related Swift Examples:
Swift Hello World Program Swift Program to Add Two Numbers Swift Program to Subtract Two Numbers Swift Program to Multiply Two Numbers Swift Program to Divide Two Numbers Swift Program to Find Remainder Swift Program to Check Even or Odd Swift Program to Find Factorial of a Number Swift Program to Generate Fibonacci Series Swift Program to Swap Two Numbers Without Using Temporary Variable Swift Program to Find Largest Among Three Numbers Swift Program to Calculate the Area of a Circle Swift Program to Reverse a Number Swift Program to Make a Simple Calculator Swift Program to Check Palindrome Swift Program to Count Number of Digits in an Integer Swift Program to Sum of Natural Numbers Swift Program to Display Times Table Swift Program to Check Prime Number Swift Program to Find LCM Swift Program to Find GCD Swift Program to Find the Power of a Number Swift Program to Split a String into Words Swift Program to Check Leap Year Swift Program to Join Two Strings Swift Program to Check Armstrong Number Swift Program to Find Sum of Array Elements Swift Program to Find the Largest Element of an Array Swift Program to Perform Matrix Addition Swift Program to Transpose a Matrix Swift Program to Multiply Two Matrices Swift Program to Find Length of a String Swift Program to Copy One String to Another String Swift Program to Concatenate Two Strings Swift Program to Search for a Character in a String Swift Program to Count Frequency of a Character in String Swift Program to Create a Simple Class and Object Swift Program to Implement Inheritance Swift Program to Handle Simple Exceptions Swift Variables and Constants Example Swift Data Types (Int, Double, String) Example Swift Optionals and Optional Binding Example Swift Tuples Example Swift Array Example Swift Dictionary Example Swift Set Example Swift Closures Example Swift Enums Example Swift Structures Example Swift Properties (Stored, Computed) Example Swift Methods (Instance, Type) Example Swift Subscripts Example Swift Inheritance and Overriding Example Swift Protocols Example Swift Extensions Example Swift Generics and Generic Functions Example Swift Error Handling with Do-Catch Example Swift Guard Statement Example Swift Defer Statement Example Swift Type Casting (as, is, as?) Example Swift Access Control Example Swift Attributes (@available, @discardableResult) Example Swift Pattern Matching Example Swift Switch Statement and Cases Example Swift For-In Loop Example Swift While and Repeat-While Loops Example Swift Conditional Statements (If, If-Else, Ternary) Example Swift Operators Example Swift Memory Management Example Swift Strong, Weak, and Unowned References Example Swift Initialization and Deinitialization Example Swift Protocol-Oriented Programming Example Swift Nested Types Example Swift Type Aliases Example Swift Dynamic Member Lookup Example Swift Lazy Stored Properties Example Swift KeyPaths Example Swift String Manipulation and Methods Example Swift Regular Expressions Example Swift Swift Programs 
Comments
Post a Comment