I have need to extract the real and imaginary elements of a complex number in python.  I know how to make a list into a complex number... but not the other way around.
I have this:
Y = (-5.79829066331+4.55640490659j)
I need:
Z = (-5.79829066331, 4.55640490659)
and I will also need each part if there is a way to go directly without going by way of Z:
A = -5.79829066331
B = 4.55640490659
Thanks!
解决方案Y = (-5.79829066331+4.55640490659j)
Z = (Y.real, Y.imag)
A = Y.real
B = Y.imag

I have need to extract the real and imaginary elements of a complex number in python.  I know how to make a list into a complex number... but not the other way around.
I have this:
Y = (-5.79829066331+4.55640490659j)
I need:
Z = (-5.79829066331, 4.55640490659)
and I will also need each part if there is a way to go directly without going by way of Z:
A = -5.79829066331
B = 4.55640490659
Thanks!
解决方案Y = (-5.79829066331+4.55640490659j)
Z = (Y.real, Y.imag)
A = Y.real
B = Y.imag

产生一个复数$z$, $z$的实部和虚部分别从-100变化到100，在一幅图的两父子图中分别$z^2$的实部和虚部的等值线图.
import matplotlib.pyplot as plt 
import numpy as np

x_vals=np.linspace(-100,100,250)         #创建自变量数组
y_vals=np.linspace(-100,100,250)             #创建自变量数组

x,y=np.meshgrid(x_vals,y_vals)            #将原始数据变成网格数据形式
z=x+1j*y
z_sq=z**2
plt.figure()
#分图
plt.subplot(1,2,1)
cs1=plt.contour(x,y,z_sq.real)        #返回值coutourset 对象
plt.clabel(cs1,fontsize=10)      #等高线贴标签
plt.subplot(1,2,2)
cs2=plt.contour(x,y,z_sq.imag)          #返回值coutourset 对象
plt.clabel(cs2,fontsize=10)      #等高线贴标签

结果：

题目：设计一个复数类complex,分别将复数的实部和虚部作为属性，定义三个构造方法(没有参数时默认为实部和虚部都为0;一个参数时默认为实数，即虚部为0,两个参数时分别为实部和虚部),并定义两个成员方法计算两个复数的和与差，定义一个构造方法进行初始化.定义一个print()方法输出复数的值,当虚部为0时不输出虚部.

import java.util.Scanner;

class Complex{
 private double r, i;
 public Complex() {
  r = 0;
  i = 0;
 }
 public Complex(double r, double i) {
  this.r = r;
  this.i = i;
 }
 public Complex(Complex z) {
  this.r = z.getR();
  this.i = z.getI();
 }

 public void setR() {
  this.r = r;
 }

 public void setI() {
  this.i = i;
 }

 public double getR() {
  return r;
 }
 public double getI() {
  return i;
 }
 // 复+复
 public Complex add1(Complex z) {
  return new Complex(getR() + z.getR(), getI() + z.getI());
 }
 // 复+实
 public Complex add2(double x) {
  return new Complex(getR() + x,getI());
 }
 // 复+虚
 public Complex add3(double x) {
  return new Complex( getR(),getI() + x);
 }
 // 复-复
 public Complex sub1(Complex z) {
  return new Complex(getR() - z.getR(), getI() - z.getI());
 }
 // 复-实
 public Complex sub2(double x) {
  return new Complex(getR() - x,getI());
 }
 // 复-虚
 public Complex sub3(double x) {
  return new Complex( getR(),getI() - x);
 }
 public String toString() {
  String str = "";
  if (i != 0)
   str = "(" + r + "+" + i + "i" + ")";
  if (i == 0)
   str = "(" + r + ")";
  return str;
 }
}

public class ComplexT{
 public static void main(String[] args)
 {
	// Complex z1 = new Complex(1,2);
	//  Complex z2 = new Complex(3,4);
  Scanner sc = new Scanner(System.in);
  double x1= sc.nextDouble();
  Scanner sc1 = new Scanner(System.in);
  double y1= sc1.nextDouble();
  Complex z1 = new Complex(x1,y1);
  ///
  Scanner sc2 = new Scanner(System.in);
  double x2= sc.nextDouble();
  Scanner sc3 = new Scanner(System.in);
  double y2= sc1.nextDouble();
  Complex z2 = new Complex(x2,y2);
  
  System.out.println(z1+"+"+z2+"="+z1.add1(z2));
        System.out.println(z1+"-"+z2+"="+z1.sub1(z2));
 }
}