Python output mathematical symbols example

I won't say much nonsense, everyone should just look at the code!

import pandas as pd
import numpy as np
import matplotlib.pyplot as plt

x=np.arange(10)
y=np.sin(x)

plt.figure(figsize=(10,8))

plt.plot(x,y,label=r'$\alpha_v$') #In two$Output between numbers
plt.title(r'$\alpha$')
plt.legend(fontsize=16)
plt.xlabel(r'$\theta_{se}$',fontsize=16) #Subscript use_To indicate that if there are multiple characters in the subscript or superscript, enclose it in curly braces
# plt.xlabel(r'$T$',fontsize=16) #Output italic T

Supplementary knowledge: python-calculate a simple mathematical expression in a paragraph of text

I won't talk too much nonsense, everyone should just look at the code

import re
 
txt="Please calculate the speed of the old driver within 2s
1678151565-1188787929+1755483937+817954137-442257056-2006451995*2113482706+790747088*888843907+1335150586-33099917=?;"
 
expression = re.search(r'(\d+[+\-*])+(\d+)', txt).group()
result =eval(expression)print(result)

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