private static void c4mat_sft_test()
//****************************************************************************80
//
// Purpose:
//
// C4MAT_SFT_TEST tests C4MAT_SFTB and C4MAT_SFTF.
//
// Licensing:
//
// This code is distributed under the GNU LGPL license.
//
// Modified:
//
// 22 June 2010
//
// Author:
//
// John Burkardt
//
{
const int n1 = 10;
const int n2 = 4;
Console.WriteLine("");
Console.WriteLine("C4MAT_SFT_TEST");
Console.WriteLine(" C4MAT_SFTF computes the forward slow Fourier transform.");
Console.WriteLine(" C4MAT_SFTB computes the backward slow Fourier transform.");
Console.WriteLine("");
Console.WriteLine(" The data has dimensions N1 = " + n1 + ", N2 = " + n2 + "");
int seed = 123456789;
Complex[] x = UniformRNG.c4mat_uniform_01_new(n1, n2, ref seed);
typeMethods.c4mat_print_some(n1, n2, x, 1, 1, 10, 10, " The original data:");
//
// Compute the slow Fourier transform of the data.
//
Complex[] y = Slow.c4mat_sftf(n1, n2, x);
typeMethods.c4mat_print_some(n1, n2, y, 1, 1, 10, 10, " The Fourier coefficients:");
//
// Now try to retrieve the data from the coefficients.
//
Complex[] x2 = Slow.c4mat_sftb(n1, n2, y);
typeMethods.c4mat_print_some(n1, n2, x2, 1, 1, 10, 10, " The retrieved data:");
}