---
title: MTLMathMode.fast
framework: metal
role: symbol
role_heading: Case
path: metal/mtlmathmode/fast
---

# MTLMathMode.fast

An indicator of the mode the compiler uses to make aggressive, potentially lossy assumptions about floating-point math.

## Declaration

```swift
case fast
```

## Discussion

Discussion This is the default for Intel and AMD devices.

## See Also

### Modes

- [MTLMathMode.relaxed](metal/mtlmathmode/relaxed.md)
- [MTLMathMode.safe](metal/mtlmathmode/safe.md)