import numpy as np

def f(x):
    return x**2

def distance(x1, y1, x2, y2):
    return np.sqrt((x2-x1)**2 + (y2-y1)**2)

x1 = -1
min_dist = distance(x1, f(x1), 0, 2)

while x1 < 2:
    x1 += 0.01
    min_dist = min(min_dist, distance(x1, f(x1), 0, 2))
                    
print("Den korteste avstanden er", round(min_dist,3))