gh-36229: Fixed grammatical errors at multiple points in English documentation
There were various grammatical errors, mostly pertaining to the use of
English articles "a" and "an" with corresponding nouns, all of which
have now exhaustively been fixed.
This also fixes Issue #35642.
This fix makes the documentation in English more readable and improves
developer experience. All the changes for article-noun agreement are in
accordance to American English standards.
I used VSCode's regular expression search to find out all the instances
of erroneous article usage and changed them manually.
Some examples are given below.
`src\sage\schemes\toric\library.py: * This is an example of an
non-polyhedral fan.`
`src\sage\schemes\hyperelliptic_curves\jacobian_generic.py: An more
extended example, demonstrating arithmetic...
src\sage\rings\number_field\S_unit_solver.py: # Note that l is the an
lower bound on the square of the magnitude...`
The lines above have respectively been changed to:
`src\sage\schemes\toric\library.py: * This is an example of a
non-polyhedral fan.`
`src\sage\schemes\hyperelliptic_curves\jacobian_generic.py: A more
extended example, demonstrating arithmetic...
src\sage\rings\number_field\S_unit_solver.py: # Note that l is the lower
bound on the square of the magnitude...`
All the changes are only in the documentation/comments at various places
in the project. There were some instances where "an" had to be changed
to "and" or some other word, but they were very few. Most required
changing it to "a" or completely removing the article.
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URL: https://github.com/sagemath/sage/pull/36229
Reported by: MedantSharan
Reviewer(s): John H. Palmieri, Matthias Köppe, MedantSharan
