.. _method-asynch_pattern_search-merit_function-merit2_squared:

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merit2_squared
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Nonsmoothed merit function


.. toctree::
   :hidden:
   :maxdepth: 1



**Specification**

- *Alias:* None

- *Arguments:* None


**Description**


APPS solves nonlinearly constrained problems by solving a sequence of
linearly constrained merit function-base subproblems. There are
several exact and smoothed exact penalty functions.

``merit2_squared``: based on :math:`\ell_2^2`  norm


