So I know that if I want to use a LaTeX string in my plots I should instead of for example "sin(x)", I should use r"\sin(x)".
But if I have a = "\sin(x)" and I now want to use this a as my plot label, how can I convert it to r"\sin(x)"? When I do type(r"\sin(x))" is just says string.
Mind that to have MathText activated the string must be in between Dollar signs ($).
In case your latex contains backslashes you need to either use a raw string from the beginning
a = r"$\tan(\nu\cdot x)$"
or escape the backslashes
a = "$\\tan(\\nu\\cdot x)$"
If you try something like in the other answer, you'd get unexpected results
a = "\tan(\nu\cdot x)"
b = r"$"+a+"$"
ax.plot(x, y, label=b)
results in
Use a = r"$\sin (x)$" Or alternatively convert variable a to b, like so:
import matplotlib.pyplot as plt
ax = plt.gca()
x = [1,2,3,4,5,6]
y = [324,456,6,78,2,54] # cramming numbers on my keyboard
a = "\sin(x)"
b = r"$"+a+"$"
ax.plot(x, y, label=b)
ax.legend()
plt.show()
r in front of it. I used b = r a but that of course does not work but this way it does.a = "\tan(\nu\cdot x)".