Minor installation bug correction for 4.0.

With this 4.0 milestone, PyMoosh has reached maturity—our simulation framework is now fully operational for both students and researchers. PyMoosh now incorporates non-locality (spatial dispersion) for advanced plasmonic modeling. Performance has been enhanced and usability improved through new practical examples and notebooks.

We have fixed a few bugs, essentially related with angular and spectrum (units, and vectors for dispersive materials defined in a complex way).

Many new things: anisotropy, spatial dispersion (nonlocality). Everything should be documented and tested.

Not clean or complete enough to be declared 4.0 but almost... please use, test and enjoy.

A major change in the way materials are managed. Open the way to use extensive material libraries.

Full Changelog: 3.14...3.2

Several updates make the code and its accompanying material (the notebooks) ready for publication in an academic journal.

PyMoosh is a Python-based simulation library designed to provide a comprehensive set of numerical tools allowing to compute essentially all optical characteristics of multilayered structures, ranging from reflectance and transmittance to guided modes and photovoltaic efficiency. Optimization tools are also included. PyMoosh is designed not just for research purposes, but also for use-cases in education. To this end, we have invested significant effort in ensuring user-friendliness and simplicity of the interface.

This release corresponds to version 3.1, it is considered fully ready and tested. In future versions, only new features will be added.