ctan, ctanf, ctanl

Retrieves the tangent of a complex number.


_Dcomplex ctan(
   _Dcomplex z
_Fcomplex ctan(
   _Fcomplex z
);  // C++ only
_Lcomplex ctan(
   _Lcomplex z
);  // C++ only
_Fcomplex ctanf(
   _Fcomplex z
_Lcomplex ctanl(
   _Lcomplex z


A complex number that represents the angle, in radians.

Return Value

The tangent of z.

Input SEH Exception _matherr Exception
± ∞, QNAN, IND none _DOMAIN
± ∞ (tan, tanf) INVALID _DOMAIN


Because C++ allows overloading, you can call overloads of ctan that take and return _Fcomplex and _Lcomplex values. In a C program, ctan always takes and returns a _Dcomplex value.


Routine C header C++ header
ctan, ctanf, ctanl <complex.h> <ccomplex>

For more compatibility information, see Compatibility.

See also

Alphabetical Function Reference
catanh, catanhf, catanhl
ctanh, ctanhf, ctanhl
catan, catanf, catanl
csinh, csinhf, csinhl
casinh, casinhf, casinhl
ccosh, ccoshf, ccoshl
cacosh, cacoshf, cacoshl
cacos, cacosf, cacosl
csin, csinf, csinl
casin, casinf, casinl
ccos, ccosf, ccosl
csqrt, csqrtf, csqrtl