**Addition(+), Subtraction(-), Multiplication(*),Division(/)**between complex numbers. And also perform

**Mod**(underRoot(Square(real)+square(imaginary))) of complex number.

from math import pow class complex: def __init__(self, real, imag): self.real = real self.imag = imag def __add__(self, other): return complex(self.real+other.real, self.imag+other.imag) def __sub__(self, other): return complex(self.real-other.real, self.imag-other.imag) def __mul__(self, other): return complex(self.real*other.real-self.imag*other.imag, self.real*other.imag+self.imag*other.real) def __div__(self, other): try: return self.__mul__(complex(other.real, -1*other.imag)).__mul__(complex(1.0/(other.mod().real)**2, 0)) except Exception as e: print e return None def mod(self): return pow(self.real**2+self.imag**2, 0.5) def __str__(self, precision=2): return str(("%."+"%df"%precision)%float(self.real))+('+' if self.imag>=0 else '-')+str(("%."+"%df"%precision)%float(abs(self.imag)))+'i' print "Enter real and imaginary part of complex No - 1(separeated by space)" A = complex(*map(float, raw_input().strip().split())) print "Enter real and imaginary part of complex No - 2(separeated by space)" B = complex(*map(float, raw_input().strip().split())) print "Addition: " + str(A+B) print "Subtraction: " + str(A-B) print "Multiplication: " + str(A*B) print "Division: "+ str(A/B) print "Modulas of complex Number A: " + str(A.mod())

**Sample output**:-

>>>

Enter real and imaginary part of complex No - 1

3 4

Enter real and imaginary part of complex No - 2

2 3

Addition: 5.00+7.00i

Subtraction: 1.00+1.00i

Multiplication: -6.00+17.00i

Division: 1.38-0.08i

Modulas of complex Number A: 5.0

**Explanation**:-

Python provides ability to override inbuilt arithmetic methods like __add__(),__sub__(), etc methods. It is similar to overriding __str__() method to print formatted output(like we have done in above code).For more detail refer this.

**What happens internally when we perform + operation between two objects(Remember primitive integer is object in python)?**- When we sum two objects in Python, like

a + b

the __add__ method of the a object is called: a.__add__(b)

it means that we can control the result of a sum of two objects by modifying or defining our own __add__ method.

The above detailed information is very informative. Every points that you posted is very useful to me.

ReplyDeletecore java training in chennai

core java training institutes in chennai

core java Training in Velachery

c c++ courses in chennai

javascript training in chennai

Drupal Training in Chennai

Photoshop Classes in Chennai

core java training in chennai

I signed up to to make it simpler to help my son progress.

ReplyDeleteOffice 365 Online Training

Struts Online Training

Microsoft SAAS Online Training

Windows Server Online Training

QlikSense Online Training

Vmware Online Training

Salesforce Admin Training

Microsoft SSIS Online Training

Splunk Online Training

SCCM Online Training