---
title: zero
framework: swift
role: symbol
role_heading: Type Property
path: swift/double/zero
---

# zero

The zero value.

## Declaration

```swift
static var zero: Self { get }
```

## Discussion

Discussion Zero is the identity element for addition. For any value, x + .zero == x and .zero + x == x.

## See Also

### Accessing Numeric Constants

- [pi](swift/double/pi.md)
- [infinity](swift/double/infinity.md)
- [greatestFiniteMagnitude](swift/double/greatestfinitemagnitude.md)
- [nan](swift/double/nan.md)
- [signalingNaN](swift/double/signalingnan.md)
- [ulpOfOne](swift/double/ulpofone.md)
- [leastNonzeroMagnitude](swift/double/leastnonzeromagnitude.md)
- [leastNormalMagnitude](swift/double/leastnormalmagnitude.md)