0

Not strictly a Latex issue, but I'm asking here as I'm using python to render images for my latex document with a matching font (palatino) and wondered if any of you had had similar trouble.

I have an ordinary graph and when trying to add a Chi-squared symbol \chi, it keeps coming out as a \phi symbol instead. I can see there is a similar issue in latex, but I can't seem to find any help for this issue in python. (Palatino, roman \chi and the math mode)

Any help appreciated, H

  • 1
    (1) welcome, (2) We probably need some more information about what exactly you are doing. I have often used python to generate the data for my plots, but then use LaTeX to make the actual plot, using pgfplots. Then the fonts are a non issue, if combined with the standalone classs, those graphs can then be used in other applocations. – daleif Jan 24 '18 at 10:38
  • Thank you for your speedy response. I am quite far into writing my thesis now and changing my graphing software wouldn't be ideal. I am using the following code to get the correct font within python "from matplotlib import rc rc('font',**{'family':'serif', 'serif':['Palatino'], 'size' : 12}) rc('text', usetex=True) " and then simply including the following line in my plot declaration: plt.text(1, 4500, r"$\mathrm{\sum{\chi_v^2}}$ =", size=20). (I apologise for the messy text here, I'm still learning how to use this site properly!) H – HMODP Jan 24 '18 at 10:44
  • 1
    Update your question with the data. I'm not that part into python to know much about matplotlib, but note that Palatino is a text font, thus contains no math, and how exactly dshould python interpret embedded LaTeX code? There are some packages that provides math for palatino, mathpazo is one. – daleif Jan 24 '18 at 11:00
  • 1
    I changed it to 'mathpazo' and the error has disappeared. I didn't realise that the mathpazo was the maths/greek font that goes with palatino. Thank you for your help. – HMODP Jan 24 '18 at 11:23
2

I have no idea how pythons matplotlib uses LaTeX for labels in graph making (I tend to just make data in python, and use pgfplots to plot it).

But, Palatino is a text font, it contains no math charaters. So you probably need a math font. One LaTeX example us the mathpazo package, which changes the latex text font to palatino and provides a suitable math font.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.