import sympy as sp
def taylorCoefficient(f, a, n):
x = sp.symbols("x")
coefficient = []
for i in range(0, n + 1):
afgeleide = sp.diff(f(x), x, n=n)
def f(x0): return afgeleide.subs(x, x0)
coefficient += f(a) / sp.factorial(n)
return coefficient
x = sp.symbols("x")
taylorCoefficient(x ** 2 * sp.sin(x / 2), 0, 3)
我得到的mul对象不可调用,但为什么? (在线afgeleide = ...)
答案 0 :(得分:0)
尝试将脚本的最后一行更改为taylorCoefficient( lambda x: x**2*sp.sin(x/2), 0, 3)
。