Python Derivative Method

Python Derivative Method

This article describes how to evaluate the derivative of Python. Share it with you for your reference. The specific implementation method is as follows:

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Def func (coeff ): Sum ='' For key in coeff: Sum = sum + '+ str (key) +' * '+ 'X' +' ** '+ str (coeff [key]) Return sum [1:]   From sympy import * From sympy. core. sympify import SympifyError Expr = func }) X = Symbol ("x ") Sexpr = sympify (expr) Print diff (sexpr, x) Print diff (sexpr, x). subs ('x', 3)

Use a dictionary to complete this task:

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1	(2 + 3 * x + 4 * x ** 2 + 7 * x ** 3.7). diff (x). subs ({x: 3}). evalf ()

I hope this article will help you with Python programming.