dima zaebal

%matplotlib inline
import matplotlib.pyplot as plt
import numpy as np
import math


with open('data.txt') as f:
    A, Energy, L_max = f.read().splitlines()
A = float(A)
Energy = float(Energy)
L_max = float(L_max)
del_m_square = 7.6 / 10


fig = plt.figure()
ax = fig.add_subplot(111)
box = [0.25, 0.5, 0.25, 0.25]


x = np.arange(0.0, L_max, 1)
p = 1 - A * np.sin(del_m_square*x/(Energy))*np.sin(del_m_square*x/(Energy))

ax.plot(p)

for ax in fig.axes:
    ax.grid(True)
plt.show()