---
description: "Learn more about: ACOT"
title: "ACOT function (DAX) | Microsoft Docs"
---
# ACOT

[!INCLUDE[applies-to-measures-columns-tables-visual-calculations](includes/applies-to-measures-columns-tables-visual-calculations.md)]

Returns the principal value of the arccotangent, or inverse cotangent of a number.
  
## Syntax  
  
```dax
ACOT(number)  
```
  
### Parameters  
  
|Term|Definition|  
|--------|--------------|  
|Number|The cosine of the angle you want. Must be a real number.|  
  
## Return value

A single decimal value.  
