'''lecture_09_distance_template.py
Illustrates how return statements work
Oliver W. Layton
CS 151: Computational Thinking: Visual Media
Fall 2020
TODO:
1. Add return statement
2. Demo None: show what happens with assignment without return value
3. Simultaneous assignment: show returning absolute and Eucludean distance
4. Try adding int and tuple
'''
import math


def distance(x, y):
    '''Computes the Euclidean distance between x and y'''
    dist = math.sqrt(x**2 + y**2)


# main code
dist = 0
x = 3
y = 4
distance(x, y)
print(dist)