650 questions linked to/from Why is $...$ preferable to $$...$$?
38k views

### What are the differences between $...$, $$...$$, $$...$$, and $...$? [duplicate]

The title says it all. I haven't been able to find the answer yet, so any help would be appreciated.
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1 vote
6k views

### What'sthedifferencebetween$$$$and?[duplicate]

I don't know the difference between $$$$$$...$$$$$$ and $$$$...$$$$. What's the difference between $$$$$$...$$$$$$ and $$$$...$$$$? \begin{equation*}$$$$...$$$$\end{equation*}?
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1 vote
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### How do I math code Product symbol other than type $\prod_{i=1}^{n}$ [duplicate]

I can code symbols of the type $$\prod_{i=1}^{n}$$ but when it comes to: I cannot get the less-than-equal sign placed as shown.Can this be done easily? EDIT: below removed as reason explained in ...
• 113
1 vote
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### What the difference between $$and $? [duplicate] Possible Duplicate: Why is \[ …$ preferable to$$? Why should I prefer $$to $? I have always used && and never had, seemingly, any problem ! • 7,034 0 votes 1 answer 361 views ### Using ... vs\[...$ [duplicate] In order to center stuff in math mode, we can use either$$...$$or $...$. Is there an OBJECTIVE reason as to why one is better than the other? • 3,413 0 votes 0 answers 438 views ### Use$$...$$or $...$ to enter math mode in LaTeX? [duplicate] I read on some sites that [ ... ] (with backslashes before the brackets) should be used, rather that$$...$$what is the difference between both? If you compare the output, the result is the same. 1 vote 0 answers 346 views ### Vertical spaces around display math [duplicate] (First of all, I know that  should be used instead of$$ $$and I do it.) I'd like to know about the vertical spacing around math display blocks. According to texdef -t latex $we have \[: ... • 37.6k 2 votes 0 answers 279 views ### Does amsmath treat double dollars and \[' $' delimiters differently? [duplicate] I ran into what I think is an anomaly. I was trying to add tags to my displayed math equations in a document, and I ran into the error message Package amsmath Error: \tag not allowed here which ... 0 votes 1 answer 124 views ### How to reduce or make the space equal of linespacing before and after the$$ something $$[duplicate] How to reduce or make the space equal of linespacing before and after the$$ something $$? 1 vote 0 answers 132 views ### What is the difference "$$ $$" and ""? [duplicate] There are two ways in display-math mode. One is$$ *math equations* $$and the other one is $*math equations*$. But what is difference? • 11 0 votes 0 answers 63 views ### $....$ or$$ for mathmode in LaTeX; which is preferable? [duplicate]

Which one is better to use if you want mathmode in LaTeX, $...$ or $$...$$? My teacher said that $...$ is better, but he did not give an argument why. Is there one? I'd be interested for ...
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### How to write “ä” and other umlauts and accented letters in bibliography?

How to write in bibliography (package natbib) letter "a" with two dots above? Specially, I mean the word Birkhäuser. Is there a general rule or way how to write such umlauts or other accented letters ...
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