Polar coordinates are an alternative way of representing Cartesian coordinates or Complex Numbers.
A complex number z
z = x + yj
is completely determined by its real part x and imaginary part y.
Here, j is the imaginary unit.
A polar coordinate (r, φ)
is completely determined by modulus r and phase angle φ .
If we convert complex number to its polar coordinate, we find:
r : Distance from ( z ) to origin, i.e., $$ \sqrt{x^2 + y^2} $$
φ : 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
Output two lines:
The first line should contain the value of r.
The second line should contain the value of φ.
Sample Input
1+2j
Sample Output
2.23606797749979
1.1071487177940904
Note: The output should be correct up to 3 decimal places.
Solution Implementation
# ========================
# Information
# ========================
# Direct Link: https://www.hackerrank.com/challenges/polar-coordinates/problem
# Difficulty: Easy
# Max Score: 10
# Language: Python
# ========================
# Solution
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from cmath import polar
z = complex(input())
print(*polar(z), sep='\n')