Polar Coordinates in Python - HackerRank Solution
Problem :
Polar coordinates
are an alternative way of representing Cartesian coordinates or
Complex Numbers.
A complex number z
is completely determined by its real part x and imaginary part y.
Here, j is the
imaginary unit.
 |
A polar coordinate (r, q)
is completely determined by modulus r and phase angle q.
if we convert complex number z to its polar coordinate, we find:
r : Distance from z to origin, i.e., √(x^2+y^2)
q : Counter clockwise angle measured from the positive x-axis to the line segment that joins z to the origin.
Python's cmath module provides access to the mathematical functions for complex numbers.
q : Counter clockwise angle measured from the positive x-axis to the line segment that joins z to the origin.
Python's cmath module provides access to the mathematical functions for complex numbers.
cmath.phase
This tool returns the phase of complex number z(also known as the argument of
z).
>>> phase(complex(-1.0, 0.0)) 3.1415926535897931
abs
This tool returns the modulus (absolute value) of complex number z.
>>> abs(complex(-1.0, 0.0)) 1.0
Task :
You are given a complex z. Your task is to convert it to polar coordinates.
Input Format :
A single line containing the complex number z. Note: complex() function can be
used in python to convert the input as a complex number.
Constraints :
Given number is a valid complex number
Output Format :
The first line should contain the value of r.
The second line should contain the value of q.
Sample Input :
1+2j
Sample Output :
2.23606797749979 1.1071487177940904
Solution :
1 2 3 4 5 6 7 8 9 10 11 12 | # Python 3 # Polar Coordinates in Python - Hacker Rank Solution # Enter your code here. Read input from STDIN. Print output to STDOUT # Polar Coordinates in Python - Hacker Rank Solution START import cmath; num = complex(input()) z = complex(num) print(cmath.polar(z)[0]) print(cmath.polar(z)[1]) # Polar Coordinates in Python - Hacker Rank Solution END |
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CodeWorld19
Hey, I am Parthe Omkar
I THING THIS ONE CAN ALSO FULLFILL ALL THE CONDITIONS.
I DIDN'T UNDERSTAND THE NEED FOR VARIABLE z?
WHY TO USE ONE EXTRA LINE?
import cmath;
num = complex(input())
print(cmath.polar(num)[0])
print(cmath.polar(num)[1])