.. SPDX-FileCopyrightText: 2022 Dominik Vilsmeier

   SPDX-License-Identifier: GPL-3.0-or-later


Changelog
=========

0.1.0
-----

Initial release with the following content:

* Model: MADX via `cpymad`_ backend
* Inverse modeling: linear optics from closed orbits (LOCO)
* Parameters:

  * Quadrupole and multipole errors
  * BPM/steerer gain errors
  * Any variables that can be specified in MADX (used via ``:=``); this allows to model, for example, BPM/steerer rolls, longitudinal shifts, etc.

* Jacobian computation:

  * Finite-difference approximation
  * Analytical formulas

* Optimizers:

  * Nonlinear least squares via `scipy.optimize.least_squares <scipy_least_squares_>`_
  * Gauss-Newton
  * Feedback iteration
  * Allows to connect custom optimizers


.. _cpymad: https://pypi.org/project/cpymad/
.. _scipy_least_squares: https://docs.scipy.org/doc/scipy/reference/generated/scipy.optimize.least_squares.html