---
title: "*=(_:_:)"
framework: simd
role: symbol
role_heading: Operator
path: "simd/simd_quatf/*=(_:_:)-51ee0"
---

# *=(_:_:)

Multiplies two quaternions and stores the result in the left-hand-side variable.

## Declaration

```swift
static func *= (lhs: inout simd_quatf, rhs: Float)
```