Dakota Reference Manual  Version 6.10
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numerical_gradients


Gradients are needed and will be approximated by finite differences

Specification

Alias: none

Argument(s): none

Child Keywords:

Required/Optional Description of Group Dakota Keyword Dakota Keyword Description
Optional method_source

Specify which finite difference routine is used

Optional
(Choose One)
Gradient Source (Group 1) dakota (Default) Use internal Dakota finite differences algorithm
vendor Use non-Dakota fd algorithm
Optional interval_type

Specify how to compute gradients and hessians

Optional
(Choose One)
Finite Difference Type (Group 2) forward

(Default) Use forward differences

central Use central differences
Optional fd_step_size

Step size used when computing gradients and Hessians

Description

The numerical_gradients specification means that gradient information is needed and will be computed with finite differences using either the native or one of the vendor finite differencing routines.

See Also

These keywords may also be of interest: