Example: The Special Functions

using System;
using Imsl.Math;

public class SfunEx1
{
    public static void  Main(String[] args)
    {
        double result;
        
        // Log base 10 of x
        double x = 100.0;
        result = Sfun.Log10(x);
        Console.Out.WriteLine("The log base 10 of 100. is " + result);
        
        // Factorial of 10
        int n = 10;
        result = Sfun.Fact(n);
        Console.Out.WriteLine("10 factorial is " + result);
        
        // Gamma of 5.0
        double x1 = 5.0;
        result = Sfun.Gamma(x1);
        Console.Out.WriteLine
            ("The Gamma function at 5.0 is " + result);
        
        // LogGamma of 1.85
        double x2 = 1.85;
        result = Sfun.LogGamma(x2);
        Console.Out.WriteLine
            ("The logarithm of the absolute value of the " +
            "Gamma function \n    at 1.85 is " + result);
        
        // Beta of (2.2, 3.7)
        double a = 2.2;
        double b = 3.7;
        result = Sfun.Beta(a, b);
        Console.Out.WriteLine("Beta(2.2, 3.7) is " + result);
        
        // LogBeta of (2.2, 3.7)
        double a1 = 2.2;
        double b1 = 3.7;
        result = Sfun.LogBeta(a1, b1);
        Console.Out.WriteLine("logBeta(2.2, 3.7) is " + result + "\n");
    }
}

Output

The log base 10 of 100. is 2
10 factorial is 3628800
The Gamma function at 5.0 is 24
The logarithm of the absolute value of the Gamma function 
    at 1.85 is -0.0559238130196572
Beta(2.2, 3.7) is 0.0453759834847081
logBeta(2.2, 3.7) is -3.09277231203789