How to input a function ?

Question

I want input a function. Example:

>> Enter f (x): (x**2) + 1
>> enter interval separeted by comma: 0,1
>> Insert the number of n: 10

#This code will calculate an integral from 0 to 1 of x^2 + 1, separating this interval in 10 equal parts, using the Simpsons method. But I don't know how to input a function an use it inside my code.

Could someone help me ?

Thanks for your attention.

Answer 1

use built-in eval() and exec() function refer py doc for more info