[Bug]: \right) is replaced with exclamation mark when using fontset='cm' · Issue #29886 · matplotlib/matplotlib · GitHub

Bug summary

This is similar to 5210. The right big parenthesis is replaced with an exclamation mark for certain latex code.

Multiple queries were tested as follows.

Code for reproduction

import matplotlib.pyplot as plt

plt.rc('mathtext', fontset='cm')
working_texts = ['\\left(\\int_x \\right)', '\\left(\\int^x \\right)']
bugged_texts = ['\\left(\\int_x^x \\right)', '\\left(\\int_{x}^{x} \\right)']
plt.text(0.5, 0.5, fr'${bugged_texts[0]}$', parse_math=True)
plt.show()

Actual outcome

Actual:

Expected outcome

Expected:

(But with the upper bound of the integral present)

Additional information

I have only tested with mathtext fontset 'cm' and without setting it. The default font does display it correctly.
As far as I've tested it only happens when both upper and lower bound of the integral is set. Using \sum or \iint instead of \int also works correctly with both bounds. \oint however causes the same issue.

Operating system

Windows

Matplotlib Version

3.10.0

Matplotlib Backend

module://backend_interagg

Python version

3.12.5, 3.13

Jupyter version

No response

Installation

pip

FWIW I cannot reproduce the issue?

I can't reproduce it either. @oscargus did you get this to happen?

@Mackemania how have you installed LaTeX

@oscargus did you get this to happen?

No. (I have some weird installation issue on my Windows laptop, so wasn't able to try it. Just tagged it.)

I am able to reproduce the issue. My system:

╰─$ pip3 list | grep matplotlib
matplotlib                           3.6.3
matplotlib-inline                    0.1.6

╰─$ python3 --version                      
Python 3.12.3

I'm on 24.04.2 LTS (Noble Numbat)

I can also reproduce this issue. I have matplotlib 3.10.1 and matplotlib-line 0.1.7, with python 3.12.3.

Here is some more information. With the following code

import matplotlib.pyplot as plt
plt.rc('mathtext', fontset='cm')
import matplotlib.mathtext
import matplotlib.font_manager as fm

for s in range(10, 35):
    fp = fm.FontProperties(size=s)
    matplotlib.mathtext.math_to_image("$\\left(\\int_x^x \\right) \\quad + 1$", f'example{s}.png', prop=fp)

I get the exclamation point output for sizes 10-14, and 16; but not any of the others. This is very similar behavior to #5210

This is in fact a duplicate of #5210.

[Bug]: \right) is replaced with exclamation mark when using fontset='cm' · Issue #29886 · matplotlib/matplotlib · GitHub

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[Bug]: \right) is replaced with exclamation mark when using fontset='cm' #29886

Bug summary

Code for reproduction

Actual outcome

Expected outcome

Additional information

Operating system

Matplotlib Version

Matplotlib Backend

Python version

Jupyter version

Installation

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[Bug]: \right) is replaced with exclamation mark when using fontset='cm' · Issue #29886 · matplotlib/matplotlib · GitHub

Repository navigation

[Bug]: \right) is replaced with exclamation mark when using fontset='cm' #29886

Description

Bug summary

Code for reproduction

Actual outcome

Expected outcome

Additional information

Operating system

Matplotlib Version

Matplotlib Backend

Python version

Jupyter version

Installation

Activity

anntzer commented on Apr 8, 2025

jklymak commented on Apr 8, 2025

oscargus commented on Apr 9, 2025

2shaar commented on Apr 10, 2025

davidlowryduda commented on Apr 16, 2025

davidlowryduda commented on Apr 16, 2025

QuLogic commented on Apr 17, 2025

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