unsupported operand type(s) for *: 'UndefinedFunction' and 'Symbol'

[qywk99]

unsupported operand type(s) for *: 'UndefinedFunction' and 'Symbol'

This is the default example of the official website, how to solve this problem.

https://sympygamma.com/input/?i=diff%28f%28x%29%2Ag%28x%29%2Ah%28x%29%29

[eagleoflqj]

This repo is not maintained.
You may use https://github.com/eagleoflqj/sympy_beta instead
https://sympy-beta.vercel.app/input/diff(f(x)*g(x)*h(x))