# Vector Extensions

### VectorExtensions Class

Additional methods for Mono.Simd.Vector4f.

### Syntax

public static class **VectorExtensions**

### Member Details

#### Cos Method

> Returns the approximate cosine of the four floats in the vector.
>
> #### Syntax
>
> **Parameters**
>
> > *x*
> >
> > A vector of 4 floats.
>
> **Returns**
>
> > The approximate cosine of each element.
>
> #### Remarks
>
> #### Requirements
>
> **Namespace:** Sansar\
> **Assembly:** Sansar.Script (in Sansar.Script.dll)\
> **Assembly Versions:** 1.0.0.0
>
> ***

#### CosSlow Method

> Returns the cosine each element of the vector.
>
> #### Syntax
>
> **Parameters**
>
> > *v1*
> >
> > A vector of 4 floats.
>
> **Returns**
>
> > The cosine of each element.
>
> #### Remarks
>
> #### Requirements
>
> **Namespace:** Sansar\
> **Assembly:** Sansar.Script (in Sansar.Script.dll)\
> **Assembly Versions:** 1.0.0.0
>
> ***

#### SelectWithMask Method

> Creates a new vector4f from the given vectors, selecting a component from sourceIfTrue if the corresponding component in the mask is -1 and from sourceIfFalse if 0.
>
> #### Syntax
>
> **Parameters**
>
> > *mask*
> >
> > The mask vector.
> >
> > *sourceIfTrue*
> >
> > The vector containing the elements that are selected if the mask is true.
> >
> > *sourceIfFalse*
> >
> > The vector containing the elements that are selected if the maks is false.
>
> **Returns**
>
> > A new vector with elements selected from the source vectors based on the mask.
>
> #### Remarks
>
> #### Requirements
>
> **Namespace:** Sansar\
> **Assembly:** Sansar.Script (in Sansar.Script.dll)\
> **Assembly Versions:** 1.0.0.0
>
> ***

#### Sin Method

> Returns the approximate sine of the four floats in the vector.
>
> #### Syntax
>
> **Parameters**
>
> > *a*
> >
> > A vector of 4 floats
>
> **Returns**
>
> > A fast approximation of the sine of each of the 4 floats.
>
> #### Remarks
>
> #### Requirements
>
> **Namespace:** Sansar\
> **Assembly:** Sansar.Script (in Sansar.Script.dll)\
> **Assembly Versions:** 1.0.0.0
>
> ***

#### SinSlow Method

> Returns the sine each element of the vector.
>
> #### Syntax
>
> **Parameters**
>
> > *v1*
> >
> > A vector of 4 floats.
>
> **Returns**
>
> > The sine of each element.
>
> #### Remarks
>
> #### Requirements
>
> **Namespace:** Sansar\
> **Assembly:** Sansar.Script (in Sansar.Script.dll)\
> **Assembly Versions:** 1.0.0.0
>
> ***

#### SinZeroPiOverTwo Method

> Returns the approximate sine of each element in the vector.
>
> #### Syntax
>
> **Parameters**
>
> > *x*
> >
> > A vector of 4 floats.
>
> **Returns**
>
> > The approximate sine of each element.
>
> #### Remarks
>
> #### Requirements
>
> **Namespace:** Sansar\
> **Assembly:** Sansar.Script (in Sansar.Script.dll)\
> **Assembly Versions:** 1.0.0.0
>
> ***

***