# Dot

> Calculates the dot product of two vectors.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

## Dot(Vector2, Vector2)

Calculates the dot product of two vectors.

```csharp
public static float Dot(Vector2 lhs, Vector2 rhs)
```

### Parameters

**** (\[Vector2]\(/engine/6000.7/script-reference/unityengine/vector2)): The first vector.**** (\[Vector2]\(/engine/6000.7/script-reference/unityengine/vector2)): The second vector.

### Returns

| Type                                                          | Description                         |
| ------------------------------------------------------------- | ----------------------------------- |
| [float](https://learn.microsoft.com/dotnet/api/system.single) | The dot product of `lhs` and `rhs`. |

### Remarks

Returns `lhs` `.` `rhs`.

For normalized vectors Dot returns 1 if they point in exactly the same direction; -1 if they point in completely opposite directions; and a number in between for other cases (e.g. Dot returns zero if vectors are perpendicular).

For vectors of arbitrary length the Dot return values are similar: they get larger when the angle between vectors decreases.

## Dot(Vector2, Vector2)

Calculates the dot product of two vectors.

```csharp
public static float Dot(in Vector2 lhs, in Vector2 rhs)
```

### Parameters

**** (\[Vector2]\(/engine/6000.7/script-reference/unityengine/vector2)): The first vector.**** (\[Vector2]\(/engine/6000.7/script-reference/unityengine/vector2)): The second vector.

### Returns

| Type                                                          | Description                         |
| ------------------------------------------------------------- | ----------------------------------- |
| [float](https://learn.microsoft.com/dotnet/api/system.single) | The dot product of `lhs` and `rhs`. |

### Remarks

Returns `lhs` `.` `rhs`.

For normalized vectors Dot returns 1 if they point in exactly the same direction; -1 if they point in completely opposite directions; and a number in between for other cases (e.g. Dot returns zero if vectors are perpendicular).

For vectors of arbitrary length the Dot return values are similar: they get larger when the angle between vectors decreases.