# operator ==

> Returns the result of a componentwise equality operation on two double4 vectors.

## Definition

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

## operator ==(double4, double4)

Returns the result of a componentwise equality operation on two double4 vectors.

```csharp
public static bool4 operator ==(double4 lhs, double4 rhs)
```

### Parameters

**** (\[double4]\(/engine/6000.7/script-reference/unity/mathematics/double4)): Left hand side double4 to use to compute componentwise equality.**** (\[double4]\(/engine/6000.7/script-reference/unity/mathematics/double4)): Right hand side double4 to use to compute componentwise equality.

### Returns

| Type                                                                | Description                                 |
| ------------------------------------------------------------------- | ------------------------------------------- |
| [bool4](/engine/6000.7/script-reference/unity/mathematics/bool4.md) | bool4 result of the componentwise equality. |

## operator ==(double4, double)

Returns the result of a componentwise equality operation on a double4 vector and a double value.

```csharp
public static bool4 operator ==(double4 lhs, double rhs)
```

### Parameters

**** (\[double4]\(/engine/6000.7/script-reference/unity/mathematics/double4)): Left hand side double4 to use to compute componentwise equality.**** (\[double]\(https\://learn.microsoft.com/dotnet/api/system.double)): Right hand side double to use to compute componentwise equality.

### Returns

| Type                                                                | Description                                 |
| ------------------------------------------------------------------- | ------------------------------------------- |
| [bool4](/engine/6000.7/script-reference/unity/mathematics/bool4.md) | bool4 result of the componentwise equality. |

## operator ==(double, double4)

Returns the result of a componentwise equality operation on a double value and a double4 vector.

```csharp
public static bool4 operator ==(double lhs, double4 rhs)
```

### Parameters

**** (\[double]\(https\://learn.microsoft.com/dotnet/api/system.double)): Left hand side double to use to compute componentwise equality.**** (\[double4]\(/engine/6000.7/script-reference/unity/mathematics/double4)): Right hand side double4 to use to compute componentwise equality.

### Returns

| Type                                                                | Description                                 |
| ------------------------------------------------------------------- | ------------------------------------------- |
| [bool4](/engine/6000.7/script-reference/unity/mathematics/bool4.md) | bool4 result of the componentwise equality. |