> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nodi3d.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Expression

> Expression node: Evaluate an expression using the Rhai scripting language. Math › Script node in Nodi, with its inputs, outputs and properties.

Evaluate an expression using the Rhai scripting language.

**Category**: [Math](https://docs.nodi3d.com/nodi-editor/nodes.md#math) › Script

## Related nodes

Other nodes in Math › Script:

* [EvaluateFunction](https://docs.nodi3d.com/node/evaluate-function.md): Call a function with arguments. Supports Number, Vector, Point inputs.
* [Function](https://docs.nodi3d.com/node/function.md): Create a callable function using Rhai scripting. Capture textures and parameters as IN\[i].


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