! LaTeX Error: File `type1ec.sty' not found.

[jabowery]

! LaTeX Error: File `type1ec.sty' not found.

[jabowery]

I corrected my situation by performing:

$ sudo apt install cm-super
It's rather strange that this font isn't installable under at least conda if not pip if there are going to be such dependencies.

[WassimTenachi]

Hi @jabowery,

It sounds like you are having problems with the functions producing latex versions of the expressions generated by physo.

I am unable to reproduce this error on my ubuntu system.

1. Can you check that your version is:

matplotlib >= 3.5.1

2. Can you test that this snippet works correctly in the environment you are using to run physo ?

import sympy
import matplotlib.pyplot as plt

expr_str = "(sin(((f*t)+phi))*exp((alpha*-(t))))+1-1"

# Getting a sympy expression
expr_sympy = sympy.parsing.sympy_parser.parse_expr(expr_str, evaluate=False)

# If you want the simplified version
expr_sympy = sympy.simplify(expr_sympy, rational=True)

# Getting a latex expression
expr_latex = sympy.latex (expr_sympy)

# Getting a figure containing expression
fig, ax = plt.subplots(1, 1, figsize=(10, 2))
ax.axis('off')
text_pos = (0.0, 0.5)
ax.text(text_pos[0], text_pos[1], f'${expr_latex}$', size = 16)

plt.show()

3. It looks like you are not the only one having this problem with matplotlib + latex, maybe this is useful ?
   https://stackoverflow.com/questions/11354149/python-unable-to-render-tex-in-matplotlib

[WassimTenachi]

Yes it is strange.
If a lot of users end up encountering this issue, I might change the plot font to avoid such issues.

[ale-munozarancibia]

In Fedora 35, I kept having the "not found" error for type1ec.sty and type1cm.sty in matplotlib although both were installed. I was able to solve it installing texlive-psutils with dnf.