C# Program to Display Fibonacci Series

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What is Fibonacci Series?

A series of numbers in which each number (Fibonacci number) is the sum of the two preceding numbers, starting from 0 and 1, i.e., 0, 1, 1, 2, 3, 5, 8, 13, 21, and so on.

Tips: It is recommended to use our online Fibonacci Series calculator for better understanding.

Fibonacci Series between the Given Limit

In the following example, we will find the Fibonacci Series between 0 and 100.

Example

C# Compiler
using System; namespace myApp { class Program { static void Main(string[] args) { int limit = 100; int a = 0; int b = 1; int c = a + b; Console.WriteLine("Fibonacci series upto {0}: ", limit); Console.Write("{0} {1} ", a, b); while(c <= limit) { Console.Write(c +" "); a = b; b = c; c = a + b; } } } }

Fibonacci Series between any given Limit

In the following example, we will display the fibonacci series from 0 to any given limit.

Example

C# Compiler
using System; namespace myApp { class Program { static void Main(string[] args) { int a = 0; int b = 1; int c = a + b; Console.Write("Enter a (int) limit: "); int limit = Convert.ToInt32(Console.ReadLine()); Console.WriteLine("\nFibonacci series upto {0}: ", limit); Console.Write("{0} {1} ", a, b); while(c <= limit) { Console.Write(c +" "); a = b; b = c; c = a + b; } } } }

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