HILBERT HILBERT Hilbert Transform

Usage

The hilbert function computes the hilbert transform of the argument
vector or matrix.  The FreeMat hilbert function is compatible with
the one from the MATLAB API.  This means that the output of the
hilbert function is the sum of the original function and an
imaginary signal containing the Hilbert transform of it.  There are
two syntaxes for the hilbert function.  The first is

  y = hilbert(x)

where x is real vector or matrix.  If x is a matrix, then he
Hilbert transform is computed along the columns of x.
