numpy.iscomplexobj() en Python

numpy.iscomplexobj(array) : esta función lógica ayuda a verificar el tipo complejo de una array o la array de un número complejo. Incluso si la parte imaginaria es igual a cero, se considera un Objeto Complejo. 

Parámetros: 

array    : [array_like]Input array or object whose elements, we need to test.

Devolver :  

True, if the input array has a complex element; otherwise False 

Código 1:  

# Python program explaining
# iscomplexobj() function
import numpy as np
 
in_array = [1, 3, 5, 4]
print ("Input array : ", in_array)
 
output_value = np.iscomplexobj(in_array)
print ("\nIs complex : ", output_value)

Producción : 

Input array :  [1, 3, 5, 4]

Is complex :  False

Código 2:  

# Python Program illustrating
# numpy.iscomplexobj() method
import numpy as geek
   
# Returns True/False value for each element
a = geek.arange(20).reshape(5, 4)
print("Is complex : \n", geek.iscomplexobj(a))
   
# Returns True/False value as ans
# because we have mentioned dtpe in the beginning
b = geek.arange(20).reshape(5, 4).dtype = complex
                 
print("\n",b)
print("\nIs complex : ", geek.iscomplexobj(b))
  
  
b = [[1j],
     [3]]
print("\nIs complex : \n", geek.iscomplexobj(b))

Producción : 

Is complex : 
 False

 class 'complex'

Is complex :  False

Is complex : 
 True

Referencias: 
https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.iscomplexobj.html#numpy.iscomplexobj