/// <summary>
/// Implements the construction of the Hartley transform matrix.
/// </summary>
/// <param name="n">Size</param>
/// <returns>Matrix</returns>
public static float[,] Matrix(int n)
{
int j, i;
float[,] H = new float[n, n];
float s = (2.0f * Maths.Pi) / n;
for (i = 0; i < n; i++)
{
for (j = 0; j < n; j++)
{
H[i, j] = Special.Cas(s * i * j);
}
}
return(H);
}