# FX_SinFx64c

## C Specification

      #include <nitro/fx/fx_trig.h>

      fx64c FX_SinFx64c(fx32 rad);

## Arguments

rad | Radians in `fx32` format fixed-point decimal

## Return Values

Approximation of the sine.

## Description

This function receives radians as an `fx32` type and returns the result as `fx64c`. Accuracy is to at least 7 decimal places and usually to 8 decimal places. Approximations are made using internal progressive calculations. Use this function when the accuracy with `FX_SinIdx` will be insufficient.

## See Also

`FX_SinIdx, FX_CosIdx, FX_CosFx64c`

## Revision History

01/19/2004 Initial version.