How do I write stacked up exponents? For example, I tried doing $2^2^65533$ and it yelled at me š
I know about \uparrow but it's not what I am looking for.
[Tex/LaTex] How to write Superexponents
errorssuperscripts
Related Solutions
The possible visual clash of the dot with the exponent can be cured by adding a small kern:
\newcommand{\iu}{{i\mkern1mu}}
Experiment also with smaller kerns and note that the setting depends on the font used, so it can't be a universal recipe. Here's an example: left the kerned version, right the unkerned one.
Some people maintain that mathematicians should conform to ISO standards (see Timtro's answer), but my opinion is that ISO standards should conform to centuries long tradition of mathematical typesetting in the first place. We can look at an article by Sophie Kowalewski published by the Acta Matemathica, one of the journals that set the highest standards for math typesetting. On the first page we see
and on page 89
There is no doubt whatsoever for the meaning of āiā and ādā.
Maybe this is considered too old fashioned. Here is an example from a big publisher, with considerably high standards. It's an excerpt from a paper in āDifferential Geometry and its Applicationsā, volume 26(5) 2008, pages 553ā565 (top of page 563). Access is restricted, so I provide a cropped image showing just the important graphic part and no complete text.
Use \Big or \bigg; my preference would go to the former. It's not necessary that the parentheses encompass the whole contents, they are just delimiters. Surely having them asymmetric with respect to the formula axis would be worse.
\documentclass{article}
\usepackage{amsmath,amssymb}
\begin{document}
\[
\varphi^{-1}\left(\bigcap_{\substack{\mathfrak{p} < B \\ p \text{ prime}}} \mathfrak{p}\right)
\]
\[
\varphi^{-1}\Bigl(\bigcap_{\substack{\mathfrak{p} < B \\ p \text{ prime}}} \mathfrak{p}\Bigr)
\]
\[
\varphi^{-1}\biggl(\bigcap_{\substack{\mathfrak{p} < B \\ p \text{ prime}}} \mathfrak{p}\biggr)
\]
\end{document}
Compare with
\[
\varphi^{-1}
\mathopen{\raisebox{-1.8ex}{$\Biggl($}}\,
\bigcap_{\substack{\mathfrak{p} < B \\ p \text{ prime}}} \mathfrak{p}
\mathclose{\raisebox{-1.8ex}{$\Biggr)$}}
\]
where the parentheses have been shifted down
Best Answer
If you nest several super/subscripts, you should disambiguate the writing since it is not clear (for LaTeX) if you want to write
(2^2)^65533or2^(2^65533).You should therefor use curly brackets around the argument of the power function for having an unequivocal notation.
In your case, you should write
$2^{2^{65533}}$(note that$2^{2^65533}$is also ok, since it is already unequivocal)The right use of the exponent function is
^{<argument>}(e.g.$e^{i\pi}$).However, if your argument is one character-long only, you can use the shorthand
^<argument>(i.e. without curly brackets, e.g.$2^4$). Thus, you cannot write$2^{2^65533}$, even if it's mathematically unequivocal.