ferro_para_entropie.py
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#!/usr/env python3
# -*- coding: utf-8 -*-
import imgen
imgen.setup()
import matplotlib.pyplot as plt
import numpy as np
X = np.linspace(0, 4, 200)
plt.plot(X, np.tanh(X), label=r'$M / M_s$')
plt.plot(X, - X * np.tanh(X) + np.log(2*np.cosh(X)), label=r'$s / k_B$')
plt.xlabel(r'$x$')
plt.ylabel(r'$y$')
plt.legend()
# Save
imgen.done(__file__)