sin - sine function
#include <math.h> double sin(double x);
The sin() function computes the sine of its argument x, measured in radians.
An application wishing to check for error situations should set errno to 0 before calling sin(). If errno is non-zero on return, or the return value is NaN, an error has occurred.
The sin() function may lose accuracy when its argument is far from 0.0 .
Upon successful completion, sin() returns the sine of x.
If x is NaN, NaN is returned and errno may be set to [EDOM].
If x is ±Inf, either 0.0 is returned and errno is set to [EDOM], or NaN is returned and errno may be set to [EDOM].
If the correct result would cause underflow, 0.0 is returned and errno may be set to [ERANGE].
The sin() function may fail if:
- The value of x is NaN, or x is ±Inf.
- The result underflows.
No other errors will occur.
asin(), isnan(), <math.h>.
Derived from Issue 1 of the SVID.