Homework_2018_1_03_1032478036.ipynb

Kernel: Python 3

import matplotlib.pyplot as plt
%pylab inline
import pandas as pd
from scipy.interpolate import KroghInterpolator
from scipy.interpolate import BarycentricInterpolator

Populating the interactive namespace from numpy and matplotlib

df=pd.DataFrame({'x': [-15.8,0.,19.8], 
              'y': [-12.,10.,12.]})

plt.plot(df.x,df.y,'bo')
plt.grid()

I=KroghInterpolator(df.x,df.y)

X=np.linspace(-20,35)
plt.plot(df.x,df.y,'bo')
plt.plot(X,I(X))
plt.grid()