[svg] fix missing math symbols

[ferdymercury]

from latex5 tutorial

as found out in #22317 (review)

[github-actions]

Test Results

    22 files      22 suites   3d 15h 40m 21s ⏱️
 3 855 tests  3 854 ✅ 0 💤 1 ❌
77 037 runs  77 036 ✅ 0 💤 1 ❌

For more details on these failures, see this check.

Results for commit 82400c7.

♻️ This comment has been updated with latest results.

[linev]

Please check small epsilon again.
After your changes it does not look ok.
One can nicely see it in tlatex4.svg changes

[ferdymercury]

Please check small epsilon again.
After your changes it does not look ok.

you mean that the symbol is not centered? (the character is the correct one, matches the png)

Is it worth to fix the alignment? It depends on the width of the glyph...? not sure how to fix it, and it's independent of this PR ?

[linev]

you mean that the symbol is not centered? (the character is the correct one, matches the png)

It is very strange. For me small epsilon character is:

https://www.compart.com/en/unicode/U+03B5

But ROOT renders it differently.
Seems to be it comes from TeX tradition.

Rest is fine for me.

[linev]

Thanks for taking care of it!

[ferdymercury]

But ROOT renders it differently.
Seems to be it comes from TeX tradition.

yes, I agree with you it seems weird :)

osschar confirmed it was on purpose: #22076 (comment)

and here: https://tex.stackexchange.com/a/472233