skzeros.poles_residues

skzeros.poles_residues(z, f, w, residue=False)

Compute the poles and residues of the rational function in barycentric form.

Parameters:

• z (1D array) – Support points of the rational function.

• f (1D array) – Values of the rational function at the support points.

• w (1D array) – Barycentric weights of the rational function.

• residue (bool, optional) – Whether to return the residue of the computed poles, by default False

Returns:

• poles (1D array) – Poles of the rational function.

• residues (1D array, optional) – Residues of the poles, if residue is True.