Differentiation code

Question

Hello all ... I need your help ,,,, I am
looking for a program code in any
language, they find the differentiation
of a function entered by the user in
symbolic form

Answer 1

By definition
https://code.sololearn.com/cfSgK3U9OepX
But better not to ask for answers directly, because it's an app for you to learn, not to get answers for free