我的代码有问题。 我需要解决这个错误。 帮我

Question

My code is in the picture How I solve this error?

from sympy import *
import math
import numpy as np
from scipy.misc import derivative
x = Symbol ('x')
f = x*sin*(x) *exp**(-x**2)
derivative = f.diff(x)
print(derivative)

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

Answer 1

You have extra stars * . Here is how it should be:

f = x*sin(x) * exp(-x**2)

sin and exp are functions. A single * is multiplication, and ** is exponentiation.