# Matrix3d

`import { Matrix3d } from "destack:math";`

Three-by-three double-precision matrix.

```ds title="Matrix3d"
export type Matrix3d = Matrix3<float64>
```

[language/library/src/math/matrix.ds:62](https://github.com/destack-sh/destack/blob/main/language/library/src/math/matrix.ds#L62)