sin, sinf, cos, cosf : sine or cosine

Synopsis

#include <math.h>
double sin(double x);
float  sinf(float x);
double cos(double x);
float cosf(float x);
```### Description

sin and cos compute (respectively) the sine and cosine of the argument x. Angles are specified in radians. sinf and cosf are identical, save that they take and return float values.### Returns

The sine or cosine of x is returned.

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**Authoritative source**: BUSMASTER DITA help source `sin.dita`, compiled into `BUSMASTER.CHM` with the application.