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[solver-entropy-filter]
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Parameterises entropy filter for shock capturing with

1. ``d-min`` --- minimum allowable density:

    *float*

2. ``p-min`` --- minimum allowable pressure:

    *float*

3. ``e-tol`` --- entropy tolerance:

    *float*

4. ``niters`` --- number of filter strength solver iterations:

    *int*

5. ``formulation`` --- formulation for constraints and filter kernel:

    ``nonlinear`` | ``linearised``

Example::

    [solver-entropy-filter]
    d-min = 1e-6
    p-min = 1e-6
    e-tol = 1e-6
    niters = 2
    formulation = nonlinear

Used in the following Examples:

1. :ref:`2D Double Mach Reflection`

2. :ref:`2D Viscous Shock Tube`