Improve kwarg-handling of print helper functions

[eric-wieser]

This reverts two regressions in latex introduced in gh-15080, namely that:

• latex started accepted positional arguments for settings
• latex stopped respecting the global printer defaults

This also makes the signature more useful on sstr, srepr, sstrrepr, pretty, and mathml.

References to other Issues or PRs

#15080

Brief description of what is fixed or changed

See the test

Other comments

Release Notes

• printing
  • latex now once again requires settings to be passed as keyword and not positional arguments, and respects printer settings changed with set_global_settings; restoring the behavior from sympy 1.2 and earlier.

[sympy-bot]

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• printing
  • latex now once again requires settings to be passed as keyword and not positional arguments, and respects printer settings changed with set_global_settings; restoring the behavior from sympy 1.2 and earlier. (#20067 by @eric-wieser)

This will be added to https://github.com/sympy/sympy/wiki/Release-Notes-for-1.7.

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Click here to see the pull request description that was parsed.

This reverts two regressions in `latex` introduced in gh-15080, namely that:

* `latex` started accepted positional arguments for settings
* `latex` stopped respecting the global printer defaults

This also makes the signature more useful on `sstr`, `srepr`, `sstrrepr`, `pretty`, and `mathml`.

<!-- Your title above should be a short description of what
was changed. Do not include the issue number in the title. -->

#### References to other Issues or PRs
<!-- If this pull request fixes an issue, write "Fixes #NNNN" in that exact
format, e.g. "Fixes #1234" (see
https://tinyurl.com/auto-closing for more information). Also, please
write a comment on that issue linking back to this pull request once it is
open. -->
#15080


#### Brief description of what is fixed or changed
See the test


#### Other comments


#### Release Notes

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https://github.com/sympy/sympy/wiki/Writing-Release-Notes for more information
on how to write release notes. The bot will check your release notes
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<!-- BEGIN RELEASE NOTES -->
* printing
  * `latex` now once again requires settings to be passed as keyword and not positional arguments, and respects printer settings changed with `set_global_settings`; restoring the behavior from sympy 1.2 and earlier.
<!-- END RELEASE NOTES -->

Update

The release notes on the wiki have been updated.

[codecov]

Codecov Report

Merging #20067 into master will decrease coverage by 0.006%.
The diff coverage is 95.000%.

@@              Coverage Diff              @@
##            master    #20067       +/-   ##
=============================================
- Coverage   75.854%   75.847%   -0.007%     
=============================================
  Files          670       670               
  Lines       173703    173720       +17     
  Branches     40980     40980               
=============================================
+ Hits        131762    131763        +1     
- Misses       36202     36220       +18     
+ Partials      5739      5737        -2     

[oscarbenjamin]

Looks good!

[eric-wieser]

Seems to have done the trick.

Before: https://docs.sympy.org/latest/modules/printing.html?highlight=latex#sympy.printing.mathml.mathml

After: https://docs.sympy.org/dev/modules/printing.html?highlight=latex#sympy.printing.mathml.mathml