Python-сообщество

#! /usr/bin/env python
#coding=utf-8
import numpy as np
import matplotlib.pyplot as plt

x = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
y = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
plt.plot(x, y, color="blue")
plt.xlabel('time (s)')
plt.ylabel('voltage (mV)')
plt.grid(True)
plt.text(2, 6,  r'$\frac{m_0}sqrt{1-\frac{u^2}{c^2}}$', fontsize=20)

plt.show()