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import cmath  
cn = complex(3,4)  
# get polar coordinates  
print("Polar Coordinates: ",cmath.polar(cn))  
  
# polar to rectangular. Format for input is (length, ‹angle in radians›).  
#Returns a complex number  
cn1 = cmath.rect(2, cmath.pi)  
print("Polar to rectangular: ",cn1)