---
title: "GLKVector4DotProduct(_:_:)"
framework: GLKit
role: symbol
role_heading: Function
platforms: [iOS 5.0+, iPadOS 5.0+, macOS 10.8+, tvOS 9.0+]
path: "glkit/glkvector4dotproduct(_:_:)"
---

# GLKVector4DotProduct(_:_:)

Returns the dot product of two vectors.

## Declaration

```swift
func GLKVector4DotProduct(_ vectorLeft: GLKVector4, _ vectorRight: GLKVector4) -> Float
```

## Parameters

- `vectorLeft`: The first vector.
- `vectorRight`: The second vector.

## Return Value

Return Value The dot product of the two vectors.

## See Also

### Mathematical Operations Performed on Vectors

- [GLKVector4Negate(_:)](glkit/glkvector4negate(_:).md)
- [GLKVector4Normalize(_:)](glkit/glkvector4normalize(_:).md)
- [GLKVector4AddScalar(_:_:)](glkit/glkvector4addscalar(_:_:).md)
- [GLKVector4SubtractScalar(_:_:)](glkit/glkvector4subtractscalar(_:_:).md)
- [GLKVector4MultiplyScalar(_:_:)](glkit/glkvector4multiplyscalar(_:_:).md)
- [GLKVector4DivideScalar(_:_:)](glkit/glkvector4dividescalar(_:_:).md)
- [GLKVector4Add(_:_:)](glkit/glkvector4add(_:_:).md)
- [GLKVector4Subtract(_:_:)](glkit/glkvector4subtract(_:_:).md)
- [GLKVector4Multiply(_:_:)](glkit/glkvector4multiply(_:_:).md)
- [GLKVector4Divide(_:_:)](glkit/glkvector4divide(_:_:).md)
- [GLKVector4CrossProduct(_:_:)](glkit/glkvector4crossproduct(_:_:).md)
- [GLKVector4Lerp(_:_:_:)](glkit/glkvector4lerp(_:_:_:).md)
- [GLKVector4Project(_:_:)](glkit/glkvector4project(_:_:).md)
- [GLKVector4Maximum(_:_:)](glkit/glkvector4maximum(_:_:).md)
- [GLKVector4Minimum(_:_:)](glkit/glkvector4minimum(_:_:).md)