# ParabolaFunction class

Namespace: [Grasshopper2.Types.Functions.Standard](https://developer.rhino3d.com/api/gh2/namespace/grasshopper2.types.functions.standard.md) · Assembly: [Grasshopper2](https://developer.rhino3d.com/api/gh2/assembly/grasshopper2.md)

```cs
[IoId("00000000-99BC-427D-B9F9-955A321C29B5")]
public class ParabolaFunction : FunctionABC, IPolynomial
```

Represents an immutable parabolic equation in the form y = A(x-B)² + C

## Constructors

- [ParabolaFunction](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.parabolafunction/ctor.md): (3 overloads)

## Properties

- [Focus](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.parabolafunction/focus.md): Gets the focus point of this parabola.
- [IPolynomial.Coefficients](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.parabolafunction/grasshopper2-types-functions-ipolynomial-coefficients.md)
- [Notation](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.parabolafunction/notation.md)
- [Ui](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.parabolafunction/ui.md)
- [Vertex](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.parabolafunction/vertex.md): Gets the vertex point of this parabola.

## Methods

- [DomainEstimate](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.parabolafunction/domainestimate.md): Return an estimate of the interesting part of a function. Each function may choose how to answer this question individually.
- [EmitDerivative](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.parabolafunction/emitderivative.md)
- [EmitIntegral](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.parabolafunction/emitintegral.md)
- [FromPoints](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.parabolafunction/frompoints.md): (static)
- [Y](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.standard.parabolafunction/y.md)

## Inherited Members

- From [FunctionABC](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionabc.md): [C](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionabc/c.md), [IsUndefined](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionabc/isundefined.md), [Store](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionabc/store.md)
- From [FunctionAB](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionab.md): [B](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionab/b.md)
- From [FunctionA](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functiona.md): [A](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functiona/a.md)
- From [FunctionWithCaching](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionwithcaching.md): [Derivative](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionwithcaching/derivative.md), [Integral](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionwithcaching/integral.md), [Nomen](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.functionwithcaching/nomen.md)
- From [Function](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.function.md): [Asymptotes](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.function/asymptotes.md), [AutoCoDomain](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.function/autocodomain.md), [Holes](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.function/holes.md), [Integrate](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.function/integrate.md), [Poles](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.function/poles.md), [YYYY](https://developer.rhino3d.com/api/gh2/type/grasshopper2.types.functions.function/yyyy.md)