返回复数参数实部的Python程序

给定一个复数，任务是编写一个Python程序来返回复数参数的实数部分。

什么是复数

复数是那些以a+ib格式书写的数字，其中’a’和’b’是实数，’i’是称为 “iota “的虚部。（√-1）是i的值。

在Python中，虚数可以通过使用complex()函数来创建，而实数部分则使用.real属性返回。在这篇文章中，我们使用一个NumPy数组来创建虚数，并使用numpy.real()函数从中获取实数部分。

示例 1:

在这个例子中，我们可以使用complex()函数创建一个复数，并在.real属性的帮助下返回一个实数。

# creating an imaginary number.
imaginary_number = complex(1+2j)
 
# returning the real part of the
# imaginary number
print('Real part of the imaginary number is : '+str(imaginary_number.real))

输出:

Real part of the imaginary number is : 1.0

示例 2:

在这个例子中，我们可以使用NumPy数组创建一个复数，并返回其尺寸、数据类型、形状和实数。

import numpy as np
 
# Creating an array of imaginary numbers
array = np.array([1.+2.j , 2.+3.j , 4.+5.j])
print(array)
 
# dimension of the array
print("The dimension of the array is : ",array.ndim)
 
# Datatype of the array
print("Datatype of our Array is : ",array.dtype)
 
# shape of the array is
print("Shape of the array is : ",array.shape)
 
# numpy is real() method is used to return the
# real part of the imaginary numbers in the array
print("real part of the imaginary numbers in the array is :",np.real(array))

输出:

[1.+2.j 2.+3.j 4.+5.j]
The 

import numpy as np
 
# Creating an array of imaginary numbers
array = np.array([1.+2.j , 2.+3.j , 4.+5.j])
print(array)
 
# dimension of the array
print("The dimension of the array is : ",array.ndim)
 
# Datatype of the array
print("Datatype of our Array is : ",array.dtype)
 
# shape of the array is
print("Shape of the array is : ",array.shape)
 
# numpy is real() method is used to return the
# real part of the imaginary numbers in the array
print("real part of the imaginary numbers in the array is :",np.real(array))

 of the array is :  1
Datatype of our Array is :  complex128
Shape of the array is :  (3,)
real part of the imaginary numbers in the array is : [1. 2. 4.]