Класс Complex реализация

import cmath
c = 1 + 2j
c1 = 2 +4j
print('Сумма', c+c1)
print('Разность', c-c1)
print('Умножение', c*c1)
print('Деление', c/c1)
print('Степень', c**c1)
print('Сопряжение', c.conjugate())
print('Корень', c**0.5)
##exponent
print('e^c =', cmath.exp(c))
print('log2() =', cmath.log(c, 2))
print('log10(c) =', cmath.log10(c))
print('sqrt(c) =', cmath.sqrt(c))
#trigonometry
print('Sine:', cmath.sin(c))
print('Cosine:', cmath.cos(c))
print('Tangent:', cmath.tan(c))

a = complex(4, 3)
b = complex(2, 3)
print ('+',a+b)
print ('-', a-b)
print ('*', a*b)
print ('/', a/b)
print ('Степень', a**b)
print ('Корень', a**0.5)
from math import atan2
print ('mod',abs(a))
print ('arg', atan2(v.imag, v.real))

class complex(object):
   def __init__(self, a, b):
   self.a = a
   self.b = b
   print (complex (a + b))

class Complex:
 
    def __init__(self, a, b):
        self.a = a
        self.b = b
 
    def __repr__(self):
        return f'{self.a}{"-" if self.b < 0 else "+"}{abs(self.b)}j'
 
    def __add__(self, other):
        if isinstance(other, Complex):
            return Complex(self.a + other.a, self.b + other.b)
        if isinstance(other, (int, float)):
            return Complex(self.a + other, self.b)
        raise NotImplementedError
 
    def __sub__(self, other):
        ...
 
    def __mul__(self, other):
        ...
 
    def __truediv__(self, other):
        ...
 
 
c1 = Complex(1, 2)
c2 = Complex(7, -8)
print(c1, c2)
print(c1 + c2)