# FX_Atan

## Syntax

      #include <nitro/fx/fx_trig.h>

      fx16 FX_Atan( fx32 x );

## Arguments

x | `fx32`-format fixed-point decimal.

## Return Values

Arctangent of `x`

## Description

This determines the arctangent of `x`. The result that it returns is an `fx16` type in radian units. Internally, a table is referenced.

## See Also

`FX_Atan2, FX_AtanIdx, FX_Atan2Idx, FX_AsinIdx, FX_AcosIdx`

## Revision History

2004/01/19 Initial version.

CONFIDENTIAL