*********
Functions
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.. _func:

Syntax
======

.. _func-syn:

.. index:
   keyword: function
   keyword: algorithm
   keyword: break
   keyword: return
   keyword: while

External
========

.. _func-ext:

.. index:
   keyword: external

Other Considerations
====================

.. _func-misc:

.. index:
   keyword: impure
   keyword: pure

Derivative annotations, impure, pure, etc
