.. _method-coliny_solis_wets-constraint_penalty:

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constraint_penalty
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Multiplier for the penalty function


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**Specification**

- *Alias:* None

- *Arguments:* REAL

- *Default:* 1.0


**Description**


Most SCOLIB optimizers treat constraints with a simple penalty scheme
that adds ``constraint_penalty`` times the sum of squares of the
constraint violations to the objective function. The default value of
``constraint_penalty`` is 1000.0, except for methods that dynamically
adapt their constraint penalty, for which the default value is 1.0.