Fibonacci Sequence in C#

The Fibonacci sequence is a set of numbers that starts with a one or a zero, followed by a one, and proceeds based on the rule that each number (called a Fibonacci number) is equal to the sum of the preceding two numbers. If the Fibonacci sequence is denoted F ( n ), where n is the first term in the sequence, the following equation obtains for n = 0, where the first two terms are defined as 0 and 1 by convention:

F (0) = 0, 1, 1, 2, 3, 5, 8, 13, 21, 34 ...

Let's see an example in C# language for first 10 items.

using System;

namespace FactorialExample

{

class Program

{

static void Main(string[] args)

{

FibonacciSeries();

Console.ReadKey();

}

private static void FibonacciSeries()

{

int previousValue = 1;

int nextValue = 0;

int secondPreviousValue = 0;

Console.Write(secondPreviousValue + ",");

Console.Write(previousValue + ",");

for (int i = 1; i <= 10; i++)

{

nextValue = previousValue + secondPreviousValue;

secondPreviousValue = previousValue;

previousValue = nextValue;

Console.Write(nextValue + ",");

}

}

}