---
title: ACOS
url: https://www.tines.com/docs/formulas/functions/acos/
kind: formula-function
---

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# ACOS

*[View on tines.com](https://www.tines.com/docs/formulas/functions/acos/)*

Computes the arc cosine of x (in radians), returning a number between 0 and π

**Categories:** Numbers

## Syntax

```
ACOS(x)
```