//      f07tj Example Program Text
//      C# version, NAG Copyright 2008
using System;
using NagLibrary;
using System.Globalization;
namespace NagDotNetExamples
{
  public class F07TJE
  {
    static string datafile = "ExampleData/f07tje.d";
    const string diag="N";
    static void Main(String[] args)
    {
      if (args.Length == 1)
      {
        datafile = args[0];
      }
      StartExample();
    }
    public static void StartExample()
    {
      try
      {
        DataReader sr = new DataReader(datafile);
        int i,  info,  j,  n;
        string uplo="";
        int ifail;
        Console.WriteLine("f07tj Example Program Results");
        //      Skip heading in data file
        sr.Reset();
        sr.Reset();
        n = int.Parse(sr.Next());
        double[,] a = new double[n, n];
        if (n > 0)
        {
          // 
          //         Read A from data file
          // 
          sr.Reset();
          uplo = sr.Next();
          if (uplo == "U")
          {
            sr.Reset();
            for (i = 1 ; i <= n ; i++)
            {
              for (j = i ; j <= n ; j++)
              {
                a[i - 1 , j - 1] = double.Parse(sr.Next(), CultureInfo.InvariantCulture);
              }
            }
          }
          else if (uplo == "L")
          {
            sr.Reset();
            for (i = 1 ; i <= n ; i++)
            {
              for (j = 1 ; j <= i ; j++)
              {
                a[i - 1 , j - 1] = double.Parse(sr.Next(), CultureInfo.InvariantCulture);
              }
            }
          }
          // 
          //         Compute inverse of A
          // 
        
          F07.f07tj(uplo, diag, n, a, out info);

          if (info < 0)
          {
              return;
          }
          // 
          //         Print inverse
          // 
          if (info >= 0)
          {
              Console.WriteLine("");
              X04.x04ca(uplo, diag, n, n, a, "Inverse", out ifail);
          }
        }
        // 
      }
      catch (Exception e)
      {
        Console.WriteLine(e.Message);
        Console.WriteLine("Exception Raised");
      }
    }
  }
}