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Add next_whats_new entries for mathtext features #26418

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Aug 1, 2023
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Add next_whats_new entries for mathtext features #26418

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Add next_whats_new entries for mathtext features
devRD Jul 31, 2023
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Update doc/users/next_whats_new/mathtext_features.rst
devRD Aug 1, 2023
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Update doc/users/next_whats_new/mathtext_features.rst
devRD Aug 1, 2023
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32 changes: 32 additions & 0 deletions doc/users/next_whats_new/mathtext_features.rst
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``mathtext`` now supports ``\substack``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

``\substack`` can be used to create multi-line subscripts or superscripts within an equation.

To use it to enclose the math in a substack command as shown:

.. code-block::

r'$\sum_{\substack{1\leq i\leq 3\\ 1\leq j\leq 5}}$'

.. mathmpl::

\sum_{\substack{1\leq i\leq 3\\ 1\leq j\leq 5}}


``mathtext`` now supports ``\middle`` delimiter
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The ``\middle`` delimiter has been added, and can now be used with the
``\left`` and ``\right`` delimiters:

To use the middle command enclose it in between the ``\left`` and
``\right`` delimiter command as shown:

.. code-block::

r'$\left( \frac{a}{b} \middle| q \right)$'

.. mathmpl::

\left( \frac{a}{b} \middle| q \right)