Informatics2-2020/Lab06
A MathWikiből
Exercises
Complex
You have to add methods to the Complex class from the lecture:
class Complex(object): def __init__(self, real, imaginary): self.re = real self.im = imaginary def __add__(self, z2): new_re = self.re + z2.re new_im = self.im + z2.im return Complex(new_re, new_im) # used by print def __str__(self): return str(self.re) + " + " + str(self.im) + "i" z1 = Complex(4, 3) z2 = Complex(-2, 1) z3 = z1 + z2 print(z3)
- Implement the subtraction, multiplication and division methods (__sub__, __mul__, __truediv__).
- Also implement the norm method which returns the length of the complex number.
- Improve the __str__ method to handle numbers like this for example:
2 - 4i 5i 2
For testing use this (or you can use other tests):
k1 = Complex(4, 3) k2 = Complex(-2, 1) k3 = Complex(4, 1) print k1 + k2 print k1 - k3 print k2 * k1 print k3 / k1 print k1.norm()
hazi@math.bme.hu
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