what is the derivative of a function code example

Example 1: python calculate derivative of function

from sympy import Symbol, Derivative

x= Symbol('x')

function= x**4 + 7*x**3 + 8

deriv= Derivative(function, x)
deriv.doit().subs({x:4})

Example 2: derivative of sqrt(x)

Line	x	1
ax	a
Square	x2	2x
Square Root	√x	(½)x-½