cproj, cprojf, cprojl

Retrieves the projection of a complex number on the Reimann sphere.

Syntax

_Dcomplex cproj(
   _Dcomplex z
);
_Fcomplex cproj(
   _Fcomplex z
);  // C++ only
_Lcomplex cproj(
   _Lcomplex z
);  // C++ only
_Fcomplex cprojf(
   _Fcomplex z
);
_Lcomplex cprojl(
   _Lcomplex z
);
#define cproj(X) // Requires C11 or later

Parameters

z
A complex number.

Return value

The projection of z on the Reimann sphere.

Remarks

Because C++ allows overloading, you can call overloads of cproj that take and return _Fcomplex and _Lcomplex values. In a C program, unless you're using the <tgmath.h> macro to call this function, cproj always takes and returns a _Dcomplex value.

If you use the <tgmath.h> cproj() macro, the type of the argument determines which version of the function is selected. See Type-generic math for details.

Requirements

For more compatibility information, see Compatibility.

See also

Alphabetical function reference
norm, normf, norml
creal, crealf, creall
conj, conjf, conjl
cimag, cimagf, cimagl
carg, cargf, cargl
cabs, cabsf, cabsl