将Matplotlib和Sympy的图放在一起

import matplotlib.pyplot as plt
from sympy import symbols, Eq, solve

x = symbols('x')
eq = Eq(x**2 - 4, 0)

solutions = solve(eq, x)
x_values = [float(sol) for sol in solutions]

plt.plot(x_values, [0]*len(x_values), 'ro', label='Roots')
plt.xlabel('x')
plt.ylabel('y')
plt.title('Roots of the equation')
plt.legend()
plt.show()

from sympy.plotting import plot

p = plot(eq, show=False)
p.title = 'Equation'
p.xlabel = 'x'
p.ylabel = 'y'
p.show()