Blurb::
Gradients will not be used

Description::
The \c no_gradients specification means that gradient information is
not needed in the study. Therefore, it will neither be retrieved from
the simulation nor computed with finite differences. The \c
no_gradients keyword is a complete specification for this case.

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Examples::
Theory::
Faq::
See_Also::	responses-numerical_gradients, responses-analytic_gradients, responses-mixed_gradients 
