In TeX/LaTeX's default mode, there is extra space after sentence-ending periods, which needs to be suppressed with \@.
when TeX would mistakenly treat it as ending a sentence, as in Mr\@. Bean
. While \frenchspacing
eliminates the (nominally) double space between sentences, I wonder if sentence-ending periods are nevertheless treated differently from abbreviation periods (e.g., when stretching spaces, computing penalties, or whatever).
In other words: If I use \frenchspacing
(and will never format my text without it), is there any point to writing \@.
?
\@
does not suppress the extra space but actually enforces it AFAIK. You would writeMr.\ Bean
to suppress it.