# Function catalog
URL: https://docs.valsight.ai/function-catalog/
Description: The function catalog is the authoritative list of all functions you can use in node formulas.
The function catalog is the **authoritative list of all functions** you can use in node formulas.

Use this section to look up a function’s purpose, syntax, parameters, and examples. For operators such as `+`, `-`, `*`, `/`, and comparisons, see [Operators](/operators/).

## Start here if you want to:

| If you                          | Go to                                      |
| ------------------------------- | ------------------------------------------ |
| Look up a function by name      | [All functions (A-Z)](/all-functions-a-z/) |
| Find a function by what it does | [Browse by category](/browse-by-category/) |

## Related

* [Formula basics](/formula-basics/): notation, quoting rules, constants, comments
* [Operators](/operators/): arithmetic and comparisons used inside formulas
* [Troubleshooting guide](/troubleshooting-guide/): dimensionality and missing value behavior