complex.py

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## @file            complex.py
#  @brief           this module provides tools by which you can work with complex numbers
#  @author          Nima Ramezani Taghiabadi 
#
#                   PhD Researcher 
#                   Faculty of Engineering and Information Technology 
#                   University of Technology Sydney (UTS) 
#                   Broadway, Ultimo, NSW 2007, Australia 
#                   Phone No. :   04 5027 4611 
#                   Email(1)  : nima.ramezani@gmail.com 
#                   Email(2)  : Nima.RamezaniTaghiabadi@uts.edu.au 
#  @version         1.0
# 
#  Start date:      Februaty 2010
#  Last Revision:   03 January 2015 

import math

class Complex_Number:

    def __init__(self):

        self.ro   = 0
        self.teta = 0
        self.re   = 0
        self.im   = 0
        
    def polar_to_cartesian(self):
        
        self.re = self.ro*math.cos(self.teta)
        self.im = self.ro*math.sin(self.teta)

    def cartesian_to_polar(self):
        
        self.ro =   math.sqrt(self.re*self-re+self.im*self.im)
        self.teta = math.atan2(self.im,self.re)


        


def complex_multiply(c1,c2):
    
    '''
    This function multiplies c1 and c2 and returns the product
    '''
    
    c3.re = c1.re*c2.re-c1.im*c2.im
    c3.im = c1.re*c2.im+c1.im*c2.re

    c3.ro   = c1.ro * c2.ro 
    c3.teta = c1.teta + c2.teta 

    while c3.teta > 2*math.pi:
          c3.teta = c3.teta-2*math.pi
                  
    while c3.teta < -2*math.pi:
          c3.teta = c3.teta+2*math.pi