LaTeX：美元符号与 \\( \\)

Question

Is there any reason to prefer the syntax \\(myformula\\) to the usual $myformula$ in LaTeX?

Edit : The same question was asked, and answered, on tex.stackexchange .

Answer 1

LaTeX can catch nesting errors with \\( ... \\) but in practise there's no real advantage to using them over $ ... $ . If you do use \\( ... \\) , then make sure to load the fixltx2e package to make them robust (ie, eg, usable in captions and section headings).

As others have said, on the other hand, \\[ ... \\] should be used instead of $$ ... $$ .

Answer 2

I read in [1] (German text), that the use of $$ ... $$ leads to inconsistencies in vertical spaces before and after the formula, which shouldn't happen with [ ... ] .

[1] ftp://ftp.dante.de/tex-archive/info/l2tabu/german/l2tabu.pdf (Section 1.6)

Answer 3

Only that some editors can't balance $ signs, where they can balance the brackets in the \\(\\) form. If you have a good editor (and with emacs and auctex mode out there, who doesn't?), then it's not an issue.

Answer 4

I use $formula$ and $$formula$$ . But sometimes you need to catch the end of the math mode. The thing is that you can catch the begin of the math mode using \\everymath or \\everydisplay :

\everymath{\color{red}}

Unfortunately you can not catch end of the math mode. But if you use \\( and \\) you can redefine \\) :

\let\endmath\)% Save \)
\def\){\preendmath \endmath \postendmath}% Override
\def\preendmath{\,(*)}% For example
\def\postendmath{}% Any stuff

Answer 5

我相信$...$在技​​术上不是标准的 LaTeX，但\\(是。由于所有 Latex 编译器都使用底层 TeX 引擎，这从来都不是问题，但从挂件的角度来看，存在差异。

Answer 6

Use \\(...\\) and \\[...\\] .

1. MathJax understands \\(...\\) but not $...$ . Some day you will want to use MathJax.

2. In 'Find and replace' it is easier to use \\( and \\) than $ and $ .

   Eg imagine a situation where you wish to replace each \\(...\\) with \\[...\\] for proof reading purposes.

   I face this thing often, as I create some online courses for my university, and need to shift from LaTeX to HTML and vice versa.