Using Latex formulas in Matplotlib
This tutorial explains how we can display LaTexformulas or equations in Matplotlib.
LaTexWriting formulas
in Matplotlib Python
import math
import numpy as np
import matplotlib.pyplot as plt
x = np.linspace(0, 2 * math.pi, 100)
y = np.sin(x)
plt.plot(x, y)
plt.xlabel("x")
plt.ylabel(r"$\sin (x)$")
plt.title("Plot of sinx")
plt.show()
It will display the formula in a Matplotlib figure LaTex.
To render the formula in Matplotlib LaTex, we have to 'text.usetex'set to True. We can use the following script to check 'text.usetex'the value of .
import matplotlib
print(matplotlib.rcParams["text.usetex"])
Output:
False
If your system is 'text.usetex'set to True, you may get Truethe output of . If 'text.usetex'it is set to False, we can use the following script to 'text.usetex'set it to True.
import matplotlib
matplotlib.rcParams["text.usetex"] = True
We also need to have LaTex, , dvipngand Ghostscript(version 9.0 or newer) to render LaTexthe formula, and add all the installation dependencies to PATH.
TexWe can also render Greek letters and many more symbols
in Matplotlib using the format.
import numpy as np
import matplotlib.pyplot as plt
alpha = x = np.linspace(0, 10, 10)
y1 = alpha
y2 = alpha ** 2
y3 = alpha ** 3
plt.plot(x, y1, label=r"$\alpha$")
plt.plot(x, y2, label=r"$\alpha^2$")
plt.plot(x, y3, label=r"$\alpha^3$")
plt.xlabel(r"$\alpha$")
plt.legend()
plt.show()
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