# trunc

> Returns the result of truncating a float value to an integral float value.

## Definition

* **Type:** Method
* **Namespace:** [Unity.Mathematics](/engine/6000.7/script-reference/unity/mathematics.md)
* **Assembly:** UnityEngine.MathematicsModule

## trunc(float)

Returns the result of truncating a float value to an integral float value.

```csharp
public static float trunc(float x)
```

### Parameters

**** (\[float]\(https\://learn.microsoft.com/dotnet/api/system.single)): Input value.

### Returns

| Type                                                          | Description                  |
| ------------------------------------------------------------- | ---------------------------- |
| [float](https://learn.microsoft.com/dotnet/api/system.single) | The truncation of the input. |

## trunc(float2)

Returns the result of a componentwise truncation of a float2 value to an integral float2 value.

```csharp
public static float2 trunc(float2 x)
```

### Parameters

**** (\[float2]\(/engine/6000.7/script-reference/unity/mathematics/float2)): Input value.

### Returns

| Type                                                                  | Description                                |
| --------------------------------------------------------------------- | ------------------------------------------ |
| [float2](/engine/6000.7/script-reference/unity/mathematics/float2.md) | The componentwise truncation of the input. |

## trunc(float3)

Returns the result of a componentwise truncation of a float3 value to an integral float3 value.

```csharp
public static float3 trunc(float3 x)
```

### Parameters

**** (\[float3]\(/engine/6000.7/script-reference/unity/mathematics/float3)): Input value.

### Returns

| Type                                                                  | Description                                |
| --------------------------------------------------------------------- | ------------------------------------------ |
| [float3](/engine/6000.7/script-reference/unity/mathematics/float3.md) | The componentwise truncation of the input. |

## trunc(float4)

Returns the result of a componentwise truncation of a float4 value to an integral float4 value.

```csharp
public static float4 trunc(float4 x)
```

### Parameters

**** (\[float4]\(/engine/6000.7/script-reference/unity/mathematics/float4)): Input value.

### Returns

| Type                                                                  | Description                                |
| --------------------------------------------------------------------- | ------------------------------------------ |
| [float4](/engine/6000.7/script-reference/unity/mathematics/float4.md) | The componentwise truncation of the input. |

## trunc(double)

Returns the result of truncating a double value to an integral double value.

```csharp
public static double trunc(double x)
```

### Parameters

**** (\[double]\(https\://learn.microsoft.com/dotnet/api/system.double)): Input value.

### Returns

| Type                                                           | Description                  |
| -------------------------------------------------------------- | ---------------------------- |
| [double](https://learn.microsoft.com/dotnet/api/system.double) | The truncation of the input. |

## trunc(double2)

Returns the result of a componentwise truncation of a double2 value to an integral double2 value.

```csharp
public static double2 trunc(double2 x)
```

### Parameters

**** (\[double2]\(/engine/6000.7/script-reference/unity/mathematics/double2)): Input value.

### Returns

| Type                                                                    | Description                                |
| ----------------------------------------------------------------------- | ------------------------------------------ |
| [double2](/engine/6000.7/script-reference/unity/mathematics/double2.md) | The componentwise truncation of the input. |

## trunc(double3)

Returns the result of a componentwise truncation of a double3 value to an integral double3 value.

```csharp
public static double3 trunc(double3 x)
```

### Parameters

**** (\[double3]\(/engine/6000.7/script-reference/unity/mathematics/double3)): Input value.

### Returns

| Type                                                                    | Description                                |
| ----------------------------------------------------------------------- | ------------------------------------------ |
| [double3](/engine/6000.7/script-reference/unity/mathematics/double3.md) | The componentwise truncation of the input. |

## trunc(double4)

Returns the result of a componentwise truncation of a double4 value to an integral double4 value.

```csharp
public static double4 trunc(double4 x)
```

### Parameters

**** (\[double4]\(/engine/6000.7/script-reference/unity/mathematics/double4)): Input value.

### Returns

| Type                                                                    | Description                                |
| ----------------------------------------------------------------------- | ------------------------------------------ |
| [double4](/engine/6000.7/script-reference/unity/mathematics/double4.md) | The componentwise truncation of the input. |