摘要： 习题8.4 import numpy as np import pandas as pd import sympy as sp sp.init_printing(use_latex=True) from scipy.integrate import odeint import matplotlib. 阅读全文

摘要： 例7.3 import numpy as np import pylab as plt from scipy. interpolate import lagrange yx=lambda x: 1/(1+x**2) def fun(n): x=np.linspace(-5,5,n+1) p=lagr 阅读全文