# Maths.SmoothLimit enum

Namespace: [Grasshopper2](https://developer.rhino3d.com/api/gh2/namespace/grasshopper2.md) · Assembly: [Grasshopper2](https://developer.rhino3d.com/api/gh2/assembly/grasshopper2.md)

```cs
public enum Maths.SmoothLimit
```

Enumerates the possible smoothing function for [Maths.SmoothMin(double, double, Maths.SmoothLimit, double)](https://developer.rhino3d.com/api/gh2/type/grasshopper2.maths/smoothmin.md) and [Maths.SmoothMax(double, double, Maths.SmoothLimit, double)](https://developer.rhino3d.com/api/gh2/type/grasshopper2.maths/smoothmax.md) functions. In every mode except [Maths.SmoothLimit.None](https://developer.rhino3d.com/api/gh2/type/grasshopper2.maths.smoothlimit.md) the `k` parameter represents the width of the blend zone, measured in the same units as `a` and `b`.

## Values

| Name | Value | Description |
| --- | --- | --- |
| None | 0 | Regular, discontinuous Min() and Max() behaviour. k-parameter is ignored. |
| Polynomial | 1 | Quadratic polynomial smoothing with C¹ continuity. Outside the blend zone the result equals the sharp min/max. |
| Cubic | 2 | Cubic polynomial smoothing with C² continuity. Outside the blend zone the result equals the sharp min/max. |
| Exponential | 3 | Exponential (log-sum-exp) smoothing with C∞ continuity. Unlike the other smoothing modes, exponential smoothing deviates from the sharp min/max everywhere, though the deviation decays rapidly away from the crossing. |
| Circular | 4 | Circular arc smoothing with C¹ continuity. Outside the blend zone the result equals the sharp min/max. |
| Chamfer | 5 | Linear bevel (chamfer) with C⁰ continuity. Outside the blend zone the result equals the sharp min/max. |