# Objetos de números complejos

type PyComplexObject

  Este subtipo de `PyObject` representa un objeto de número complejo de Python.

  Py_complex cval

    The complex number value, using the C `Py_complex` representation.

    Deprecated since version 3.15.0a0 (unreleased), will be removed in version 3.20: Use `PyComplex_AsCComplex()` and `PyComplex_FromCComplex()` to convert a Python complex number to/from the C `Py_complex` representation.

PyTypeObject PyComplex_Type
  Part of the Stable ABI.

  Esta instancia de `PyTypeObject` representa el tipo de número complejo de Python. Es el mismo objeto que `complex` en la capa de Python.

int PyComplex_Check(PyObject *p)

  Retorna verdadero si su argumento es un `PyComplexObject` o un subtipo de `PyComplexObject`. Esta función siempre finaliza con éxito.

int PyComplex_CheckExact(PyObject *p)

  Retorna verdadero si su argumento es un `PyComplexObject`, pero no un subtipo de `PyComplexObject`. Esta función siempre finaliza con éxito.

PyObject *PyComplex_FromDoubles(double real, double imag)
  Return value: New reference. Part of the Stable ABI.

  Return a new `PyComplexObject` object from real and imag. Return `NULL` with an exception set on error.

double PyComplex_RealAsDouble(PyObject *op)
  Part of the Stable ABI.

  Return the real part of op as a C double.

  If op is not a Python complex number object but has a `__complex__()` method, this method will first be called to convert op to a Python complex number object. If `__complex__()` is not defined then it falls back to call `PyFloat_AsDouble()` and returns its result.

  Upon failure, this method returns `-1.0` with an exception set, so one should call `PyErr_Occurred()` to check for errors.

  Distinto en la versión 3.13: Use `__complex__()` if available.

double PyComplex_ImagAsDouble(PyObject *op)
  Part of the Stable ABI.

  Return the imaginary part of op as a C double.

  If op is not a Python complex number object but has a `__complex__()` method, this method will first be called to convert op to a Python complex number object. If `__complex__()` is not defined then it falls back to call `PyFloat_AsDouble()` and returns `0.0` on success.

  Upon failure, this method returns `-1.0` with an exception set, so one should call `PyErr_Occurred()` to check for errors.

  Distinto en la versión 3.13: Use `__complex__()` if available.

type Py_complex

  This C structure defines export format for a Python complex number object.

  double real
  double imag

  The structure is defined as:

      typedef struct {
          double real;
          double imag;
      } Py_complex;

PyObject *PyComplex_FromCComplex(Py_complex v)
  Return value: New reference.

  Create a new Python complex number object from a C `Py_complex` value. Return `NULL` with an exception set on error.

Py_complex PyComplex_AsCComplex(PyObject *op)

  Retorna el valor `Py_complex` del número complejo op.

  If op is not a Python complex number object but has a `__complex__()` method, this method will first be called to convert op to a Python complex number object. If `__complex__()` is not defined then it falls back to `__float__()`. If `__float__()` is not defined then it falls back to `__index__()`.

  Upon failure, this method returns `Py_complex` with `real` set to `-1.0` and with an exception set, so one should call `PyErr_Occurred()` to check for errors.

  Distinto en la versión 3.8: Use `__index__()` if available.

## Números complejos como estructuras C

The API also provides functions for working with complex numbers, using the `Py_complex` representation. Note that the functions which accept these structures as parameters and return them as results do so by value rather than dereferencing them through pointers.

Please note, that these functions are soft deprecated since Python 3.15. Avoid using this API in a new code to do complex arithmetic: either use the Number Protocol API or use native complex types, like double complex.

Py_complex _Py_c_sum(Py_complex left, Py_complex right)

  Retorna la suma de dos números complejos, utilizando la representación C `Py_complex`.

  Obsoleto desde la versión 3.15.

Py_complex _Py_c_diff(Py_complex left, Py_complex right)

  Retorna la diferencia entre dos números complejos, usando la representación C `Py_complex`.

  Obsoleto desde la versión 3.15.

Py_complex _Py_c_neg(Py_complex num)

  Retorna la negación del número complejo num, utilizando la representación C `Py_complex`.

  Obsoleto desde la versión 3.15.

Py_complex _Py_c_prod(Py_complex left, Py_complex right)

  Retorna el producto de dos números complejos, usando la representación C `Py_complex`.

  Obsoleto desde la versión 3.15.

Py_complex _Py_c_quot(Py_complex dividend, Py_complex divisor)

  Retorna el cociente de dos números complejos, utilizando la representación C `Py_complex`.

  If divisor is null, this method returns zero and sets `errno` to `EDOM`.

  Obsoleto desde la versión 3.15.

Py_complex _Py_c_pow(Py_complex num, Py_complex exp)

  Retorna la exponenciación de num por exp, utilizando la representación C `Py_complex`.

  If num is null and exp is not a positive real number, this method returns zero and sets `errno` to `EDOM`.

  Set `errno` to `ERANGE` on overflows.

  Obsoleto desde la versión 3.15.

double _Py_c_abs(Py_complex num)

  Return the absolute value of the complex number num.

  Set `errno` to `ERANGE` on overflows.

  Obsoleto desde la versión 3.15.