[plotly] Problem using latex in titles and axis labels

edsaac · March 27, 2025, 12:30pm

I put an example in this GitHub issue about loading MathJax so Plotly can render Latex correctly:

Latex not rendered in plotly charts

opened 10:56PM - 26 Aug 22 UTC

type:bug status:confirmed priority:P3 feature:st.plotly_chart

### Summary `st.plotly_chart()` does not render latex in plot elements. The […`include_mathjax`](https://plotly.com/python-api-reference/generated/plotly.graph_objects.Figure.html?highlight=include_mathjax) kwarg might take care of this but passing it to `st.plotly_chart()` makes no difference. Using raw strings or double dollar signs makes no difference either. ### Steps to reproduce [![Open in Streamlit Cloud](https://static.streamlit.io/badges/streamlit_badge_black_white.svg)](https://issues.streamlitapp.com/?issue=gh-5251) Code snippet: ```python import streamlit as st import plotly.express as px fig = px.scatter(x=[0, 1, 2, 3, 4], y=[0, 1, 4, 9, 16], labels={'x':r"$x \to x^2$", 'y':"$x^2$"}) st.plotly_chart(fig) # No latex rendered st.plotly_chart(fig,include_mathjax="cdn") # No latex rendered either st.markdown(r"$x \to x^2$") # But streamlit latex (KaTex?) does work ``` **Expected behavior:** The labels should be rendered as latex equations, ![image](https://user-images.githubusercontent.com/34405119/187000305-35b966d8-4819-4423-91bd-9ff1c2cb13cd.png) **Actual behavior:** The literal strings are shown instead ![image](https://user-images.githubusercontent.com/34405119/187000364-d5685236-e742-4abf-813f-e252d7374c26.png) ### Is this a regression? From [this discussion](https://discuss.streamlit.io/t/plotly-problem-using-latex-in-titles-and-axis-labels/4766), it seems that this has never worked :face_with_spiral_eyes: :skull: ### Debug info - Streamlit version: 1.12.2 - Python version: 3.9.5 - Using pipenv - OS version: Ubuntu 20.04.5 LTS - Browser version: Firefox 104.0 (64-bit) ### Additional information It has been mentioned in a couple discuss entries: - https://discuss.streamlit.io/t/render-mathjax-library-in-streamlit/18081 - https://discuss.streamlit.io/t/plotly-problem-using-latex-in-titles-and-axis-labels/4766

Topic		Replies	Views
Render mathjax library in Streamlit Using Streamlit	3	1225	March 27, 2025
Fun workaround for displaying Latex in Streamlit! Using Streamlit matplotlib	6	8267	February 15, 2022
Does st.write() support Latex within Markdown, like jupyter notebook? Using Streamlit	3	2712	November 11, 2019
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[plotly] Problem using latex in titles and axis labels

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