how to show the distance between two curves in a graph

[Larz60+]

This?

import matplotlib.pyplot as plt
import numpy as np


def list_diff(l1, l2):
    new_list = []
    for n, item in enumerate(l1):
        new_list.append(item - l2[n])
    return new_list

X_ev = np.array([0, 1, 2, 3])
Y1_ev = np.array([10, 15, 20, 25])
Y2_ev = np.array([2, 10, 10, 15])

print(f"distance between points: {list_diff(Y1_ev, Y2_ev)}")

plt.plot(X_ev,Y1_ev, 'g', label='Curve 1')
plt.plot(X_ev,Y2_ev, 'r', label='Curve 2')
 
SEGMENT = min(Y1_ev-Y2_ev)
print('SEGMENT')
print(SEGMENT)

plt.legend(numpoints=3)
plt.show()