csin(3M)

DESCRIPTION

These functions are available only for IA-64.

csin() returns the complex sine of z.

csinf() is a float complex version of csin(); it takes a float complex argument and returns a float complex result.

USAGE

To use these functions, compile with the default -Ae option. Make sure your program includes <complex.h>. Link in the math library by specifying -lm on the compiler or linker command line.

RETURN VALUES

csin(conj(z)) = conj(csin(z)) and csin is odd.

csin(+0+i0) returns +0+i0.

csin(+Inf+i0) returns NaN+-i0 (where the sign of the imaginary part of the result is unspecified) and raises the invalid floating-point exception.

csin(+NaN+i0) returns NaN+-i0 (where the sign of the imaginary part of the result is unspecified).

csin(Inf+iy) returns NaN+iNaN and raises the invalid floating-point exception, for positive finite y.

csin(NaN+iy) returns NaN+iNaN and optionally raises the invalid floating-point exception, for finite nonzero y.

csin(+0+iInf) returns +0+iInf.

csin(+x+iInf) returns +Inf(sin(y)+icos(y)), for positive finite x.

csin(+Inf+iInf) returns NaN+-iInf (where the sign of the imaginary part of the result is unspecified) and raises the invalid floating-point exception.

csin(+NaN+iInf) returns +NaN+-iInf (where the sign of the imaginary part of the result is unspecified).

csin(0+iNaN) returns 0+iNaN.

csin(x+iNaN) returns NaN+iNaN and optionally raises the invalid floating-point exception, for all nonzero numbers x.

csin(NaN+iNaN) returns NaN+iNaN.

ERRORS

No errors are defined.

SEE ALSO

sin(3M), casin(3M), complex(5).

STANDARDS CONFORMANCE

csin(), csinf(): ISO/IEC C99 (including Annex G, IEC 60559-compatible complex arithmetic)