My resolution for 2018 (well, one of them) is to delete MATLAB and migrate to Python. Here’s one very good reason: the pyplot package does basically everything you need for plotting, *plus* you can write axis labels and legends in LaTeX.

Here’s some example code (remember this is best done in Anaconda):

import matplotlib.pyplot as plt
import numpy as np
x = np.arange(-5,5,0.01)
fx = (1/np.sqrt(2*np.pi))*np.exp(-1*np.power(x,2)/2)
fx2 = (1/np.sqrt(4*np.pi))*np.exp(-1*np.power(x,2)/4)
fx_tex = '$f(x)=\\frac{1}{\\sqrt{2\\pi}}\\exp\\left(-\\frac{x^2}{2}\\right)$'
fx2_tex = '$f(x)=\\frac{1}{\\sqrt{4\\pi}}\\exp\\left(-\\frac{x^2}{4}\\right)$'
plt.figure(1)
plt.plot(x,fx,label=fx_tex)
plt.plot(x,fx2,label=fx2_tex)
plt.xlabel('$x$')
plt.ylabel('$f(x)$')
plt.legend()
plt.show()

Notice how the legend labels are specified by the “label” tag in the plot command. Also, remember to escape those backslashes!

And here’s the output:

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