# Stepper Nonlinear Single Constraint Solver

## Class Name

- RStepperNonlinSingleConstrSolver

## Location in Objects Pane

- Methods > Nonlinear Single Constraint Solver > Stepper

## Properties

### Object Name

- Name of the object in Rt
- Allowable characters are upper-case and lower-case letters, numbers, and underscore (“_”).
- The name is unique and case-sensitive.

### Output Display Level

- Determines the level of messages and outputs of this object to print in the Output Pane.
- The more the level of outputs, the more time it takes to run the analysis.

### Start Point

- a drop-down list of start point including mean, origin and current value

### Step Size Searcher

- List of defined step size searchers
- Step size searcher object itself is defined either as Fixed or Armijo.

### Step Direction Searcher

- List of defined step size searchers

- Indicates the transformer object which transforms random variables in original space to the standard normal space or vice versa.
- Transformer object itself is defined as No Correlation Transformer (for cases in which there's no correlation between random variables) or as Nataf Transformer.

### Convergence Checker

- List of defined convergence checkers

### Maximum Iterations

- Determines the maximum number of iterations checking convergence criteria.

## Output

- This object searches for the design point.

## Right-click Menu

### Remove