Dakota Reference Manual: nip

| Dakota Reference Manual Version 6.15 Explore and Predict with Confidence

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nip

Uses a nonlinear interior point method for underlying optimization

## Specification

Alias: none

Argument(s): none

## Description

Many uncertainty quantification methods solve a constrained optimization problem under the hood. The `nip` keyword directs Dakota to use a nonlinear interior point to solve that problem. A nonlinear interior point method traverses the interior of the feasible region to arrive at the solution to the optimization problem.