#!/usr/bin/env python

# coding: utf-8

# # Calculate derivatives in Python

# In[9]:

import sympy as sym

# In[11]:

x = sym.Symbol('x') # Symbolize X

func= x**4+4*x**2+5*x-6 # Function

sym.Derivative(func, x) # Derivative expression

# In[12]:

sym.Derivative(func, x, evaluate=True) # Calculate derivative of func

# In[13]:

func.diff(x) # Or use this for the same

# In[14]:

# Create functions with lambdify

expr= sym.lambdify(x, func)

expr_der=sym.lambdify(x, func.diff(x))

# In[15]:

print(f'value of func at x=5: {expr(5)}')

print(f'derivative of func at x=5: {expr_der(5)}')

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