---
title: MTLTensorDataType.float4e2m1
framework: metal
role: symbol
role_heading: Case
path: metal/mtltensordatatype/float4e2m1
---

# MTLTensorDataType.float4e2m1

A 4-bit floating point format data type with 2 exponent bits, 1 mantissa bit and 1 sign bit.

## Declaration

```swift
case float4e2m1
```