# IterationSettings
```csharp
public sealed class IterationSettings
```
Namespace `SharpCell` ยท package `SharpCell`
Iterative calculation, Excel's "Enable iterative calculation": circular references are calculated over and over until they settle, instead of giving 0.
## Constructors
### IterationSettings(bool, int, double)
```csharp
public IterationSettings(bool Enabled = false, int MaxIterations = 100, double MaxChange = 0.001)
```
Settings for iterative calculation; the defaults are Excel's, with iteration off.
**Parameters**
- `Enabled`: Whether circular references are calculated iteratively.
- `MaxIterations`: The most passes over a circular reference, 1 to 32,767.
- `MaxChange`: A circular reference has settled when no value of it changed by more than this in a pass; 0 or more.
**Exceptions**
- `ArgumentOutOfRangeException`: A limit is outside what Excel allows.
## Properties
### Enabled
```csharp
public bool Enabled { get; }
```
Whether circular references are calculated iteratively.
### MaxChange
```csharp
public double MaxChange { get; }
```
A circular reference has settled when no value changed by more than this in a pass; 0.001 by default.
### MaxIterations
```csharp
public int MaxIterations { get; }
```
The most passes over a circular reference; 100 by default.
## Methods
### Equals(IterationSettings)
```csharp
public bool Equals(IterationSettings? other)
```
Whether the other settings are the same.
### Equals(object)
```csharp
public override bool Equals(object? obj)
```
Whether `obj` is the same settings.
### GetHashCode()
```csharp
public override int GetHashCode()
```
A hash code consistent with [IterationSettings.Equals](SharpCell.IterationSettings.md#equals-iterationsettings).
### ToString()
```csharp
public override string ToString()
```
The settings as text, such as `Enabled, 100 iterations, change 0.001`.