Guide
=====

Learn the physical model and API conventions before choosing a numerical
calculation or interpreting its results.

.. grid:: 1 2 2 2
   :gutter: 2

   .. grid-item-card:: Theory
      :link: theory
      :link-type: doc

      Born approximation mathematics, coherent amplitudes, Green tensors,
      and the distinction between finite samples and infinite media.

   .. grid-item-card:: Package overview
      :link: overview
      :link-type: doc

      Units, material construction, solver configurations, and results.

.. toctree::
   :hidden:
   :maxdepth: 2

   theory
   overview