---
title: isNaN
framework: spatial
role: symbol
role_heading: Instance Property
path: spatial/ray3d/isnan
---

# isNaN

A Boolean value that indicates whether the ray contains any NaN values.

## Declaration

```swift
var isNaN: Bool { get }
```

## See Also

### Checking characteristics

- [isFinite](spatial/ray3d/isfinite.md)
- [isZero](spatial/ray3d/iszero.md)
- [intersects(_:)](spatial/ray3d/intersects(_:).md)
- [intersects(sphereOrigin:sphereRadius:)](spatial/ray3d/intersects(sphereorigin:sphereradius:).md)