摘要： `import numpy as np from scipy.interpolate import interp1d from scipy.interpolate import lagrange import pylab as plt a = np.loadtxt('data7_4.txt') x0 阅读全文

摘要： `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 = l 阅读全文