Matplotlib Mathematical Expression

You can put TeX markup for a subset of a Matplotlib text string inside a pair of dollar signs ($).

# Filename : example.py
# Copyright :　2020 By w3codebox
# Author by : www.oldtoolbag.com
# Date :　2020-08-08
# math text
　plt.title(r'$\alpha > \beta$')
　)

To create subscripts and superscripts, please use the _ and ^ symbols -

　　r'$\alpha_i> \beta_i$'
import numpy as np
import matplotlib.pyplot as plt
t = np.arange(0.0,　2.0, 0.01)
s = np.sin(2*np.pi*t)
plt.plot(t,s)
plt.title(r'$\alpha_i> \beta_i$', fontsize=20)
plt.text(0.6, 0.6, r'$\mathcal{A}\sin(2　\omega t)$', fontsize=　20)
plt.text(0.1,　-0.5, r'$\sqrt{2}$', fontsize=10)
plt.xlabel('time (s)')
plt.ylabel('volts (mV)')
plt.show()

Execute the above example code to get the following result -