Calculate the Factorial of an Integer in C#

My preference for run-time speed is:long Factorial(int input){ if (input 1; input--) { if (long.MaxValue - answer < answer) throw new...

Recursion is a neat way of calculating a number's factorial but there is a danger of the stack overflowing when the number is large. The following is a simplified version of the original. It obviates the need for the if else statements within the where loop.int Factorial(int input){ int...

It could be done using Recursive Lambda Expression, for example,class Program{ static Func Factorial = x => x < 0 ? -1 : x == 1 || x == 0 ? 1 : x * Factorial(x - 1); static void Main(string[] args) { Console.WriteLine(Factorial(5)); }}(The code...

The System.Numeric.BigInteger class allows for calculating VERY LARGE values.I created a sample window form app to calculate the factorial of an input valueprivate void button1_Click(object sender, EventArgs e){ int inputValue; if (int.TryParse(this.textBox1.Text, out inputValue)...

Use Recursion.int factorial(int n){ if(n<0) return -1; if(n==0 || n==1) return 1; return n * factorial(n-1);}