---
title: NDArray.ScalarType.bool
framework: coreai
role: symbol
role_heading: Case
path: coreai/ndarray/scalartype-swift.enum/bool
---

# NDArray.ScalarType.bool

A Boolean scalar.

## Declaration

```swift
case bool
```

## Discussion

Discussion Boolean scalars are used in Boolean operations such as and, or and xor, and as the result of comparison operators such as equal and greater. Boolean values are represented with a byte where 0 represents false and any other value (but usually 1) represents true.