The periodic function SIN returns the trigonometric sine of X.

The angle for which the sine is desired, specified in radians. If *
X*
is double-precision floating or complex, the result is of the same type. All other types are converted to single-precision floating-point and yield floating-point results. When applied to complex numbers:

sin *
x*
= COMPLEX(sin *
R*
cosh *
I*
, cos *
R*
sinh *
I*
)

where *
R*
and *
I*
are the real and imaginary parts of *
x*
.

If input argument *
X*
is an array, the result has the same structure, with each element containing the sine of the corresponding element of *
X*
.