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我正在尝试使用SymPy来获取残留物,在这种情况下是余切函数.我有一个integrate()函数:

import sympy as sy
import numpy as np

def integrate(f, z, gamma, t, lower, upper, exact=True):
    '''
    Integrate f(z) along the contour gamma(t): [lower, upper] --> C

    INPUTS:
    f - A SymPy expression. Should represent a function from C to C.
    z - A SymPy symbol. Should be the variable of f.
    gamma - A SymPy expression. Should represent a function from [lower, upper] to C.
    t - A SymPy symbol. Should be the variable of gamma.
    lower - …