Dakota Reference Manual: initial_trust_radius

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initial_trust_radius

Initial trust region radius

## Specification

Alias: none

Argument(s): REAL

Default: -1. (use NL2SOL internal default of 1)

## Description

`initial_trust_radius` specification (NL2SOL's `lmax0`) specifies the initial trust region radius for the algorithm.

The internal default results in the internal use of steps of length 1. The default is selected with a value of -1.