take the derivative of a function in python

main.py
import sympy as sym

# define the function
x = sym.Symbol('x')
f = x**3 + 2*x - 1

# take the derivative
f_prime = sym.diff(f, x)

# print the result
print(f_prime)
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main.py
3*x**2 + 2
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main.py
import numpy as np

# define the function
def f(x):
    return x**3 + 2*x - 1

# define the interval
x = np.linspace(-10, 10, 1000)

# take the derivative
f_prime = np.gradient(f(x), x)

# plot the result
import matplotlib.pyplot as plt
plt.plot(x, f_prime)
plt.xlabel('x')
plt.ylabel('f\'(x)')
plt.show()
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