How to display a circle dynamically in python, using matplotlib.pyplot?

Question

import numpy as np
import matplotlib.pyplot as plt
theta = np.linspace(0, 2*np.pi, 360)
r = np.sqrt(1)
x1 = r*np.cos(theta)
x2 = r*np.sin(theta)
plt.plot(x1, x2)
plt.xlim(-1,1)
plt.ylim(-1.7,1.7)
plt.title('CIRCLE', fontsize=8)
plt.show()

This program is static.
I used the parametric equation of circle to execute this. The user will provide the input radius.
Please help me with the dynamic one.
I just don't know how to write dynamically. I want to learn. Please help.

Answer 1

Ok