@AndrewCashner \DeclareOption* manages options uncovered by other \DeclareOption statements. You want to look at \ExecuteOptions, maybe.

\documentclass{article}
\usepackage{graphicx}
\usepackage{subcaption}
\usepackage[valign=c,heightadjust=all]{floatrow}
\DeclareFloatVCode{extraskipbelowsubfloatrow}{\vskip 2.5pt}%
\begin{document}
\thisfloatsetup{rowpostcode=extraskipbelowsubfloatrow,midcode=extraskipbelowsubfloatrow}
\begin{figure}
  \centering
  \captionsetup[subfigure]{font+={footnotesize},skip=2.5pt}%
  \floatbox{figure}{%
    \begin{subfloatrow*}[2]
      \ffigbox[\FBwidth]{%
        \includegraphics[height=8em]{example-image-a}}{\subcaption*{Sub-Caption}}

^^ Because I can't fit this in a comment on Bernard's answer ;).

I still can't get this to do what I want, though. [And if I can't do it with Bernard helping, I'm not sure there is much hope :(.)

any one knows the latex command to make it display grid lines (squares, etc...) showing page margins, such as textwidth, and others, as explained shown in this page sharelatex.com/learn/Page_size_and_margins ? I am having hard time with geometery package, and it will be nice if I can actually see the grid lines in background displayed by Latex if possible.

\usepackage[showframe]{geometry}

@Roger123 Thanks! Will try it now.

no problem

I have installed both MiKTeX 2.9 and TeX Live on my computer (I am using Windows 7). Is that make any trouble in compiling files?

@sky-light shouldn't be.

@JosephWright Akira has pushed updates to texlive, rebuilding now....

This is LuaTeX, Version beta-0.89.2 (TeX Live 2016/dev)

@JosephWright hyphenation back ^^^^

@DavidCarlisle ohhh PARTY!!!

@sky-light I have miktex 2.9, texlive 2012, 2013, 2014, 2015 and it works fine. I change the PATH-variable to switch between the systems. The only problem I sometimes have is that I forget which system I'm currently using and wonder why a package doesn't work as expected.

@UlrikeFischer Much the same here (mac has TL09-15, Windows has MiKTeX 2.9, TL14,15)

@JosephWright TL25? Now we know, you are from the future ...

@UlrikeFischer :) Fixed

^^ similar for me, just it's TL only as I'm on linux :)

@DavidCarlisle Doesn't look like he's posted an updated binary yet

Can I safely run pdflatex file.tex from within file.tex using shell-escape (conditionally of course)? Probably not due to the log file, right? ... Oh but I can do that using pdflatex --jobname !!!

@yo' more like cynical resignation than party, but yes.

@JosephWright I guess he will soon, he mailed me this morning to say he'd just pushed it to texlive svn

Would it be rude to "answer" this question: tex.stackexchange.com/questions/295621/… with just a link to pgfmanual.pdf? It would fit the way the question is asked perfectly.... :P

@BMWurm comment not answer if it's just a manual reference, I think.

@DavidCarlisle I would have commented only, anyway, but it really is just a "do this for me" question. Although I think the manual could actually help... I'm currently looking for the correct page... the manual is a bit long after all :P

@BMWurm I agree with @DavidCarlisle, it's better to comment. You can also add a link to texample.net/tikz/examples/tag/flowcharts

@yo' My machine at the office has 2007 2008 2009 2010 2011 2012 2013 2014 2015 texmf-local

@egreg Show-off

@JosephWright :)

@UlrikeFischer Thanks. How to change the PATH-variable to switch between the systems?

Woohoo new mobile SE chat!

@JosephWright @egreg :)

@egreg Wow!

@yo' Replied from phone!

Just noticed something weird about superscripts:

@LaRiFaRi The superscript in \sin^2 uses the whole operator as nucleus, whereas in )^2 the nucleus is )

@egreg yes, this is obvious, but I am getting three different cases. The first one results in 'correct' alignment. The numerator case meets is almost and the denominator case is really bad.

@LaRiFaRi The denominators use the cramped style

@LaRiFaRi \def\sin{\mathop{\smash{\mathrm{sin}}\vphantom{s}}\nolimits}

@LaRiFaRi But it could give wrong results in other cases, beware.

@egreg Thanks. Interesting. But I will not modify sin... to scarry. I think we got enough answers on tex.stackexchange.com/q/295624

@egreg I just thought, I found a bug on \sin as I have never noticed that cramped style before.

@egreg all so old This is LuaTeX, Version beta-0.89.2 (TeX Live 2016/dev)

@sky-light search for environment variable or something like this in the windows search. (I'm using a script in my editor winedt to change it locally).

@PauloCereda latex3.github.io/latex-project.org: note favicon!

@JosephWright uh-oh, broken for me... :(

oooh I see now!

yaaay

Hi all

(quack!)

@Danu Quack!

Is there any reason for using at-most-3-letter file extensions?

@yo' -- just left over from the era when this was a legitimate restriction for most operating systems. there was a similar restriction on the base -- it was 6 characters for the sail operating system, where tex was first developed.

@yo' DOS restriction, if I recall correctly. It was 8 chars for the name, the dot, and 3 for the extension.

@barbarabeeton yeah, and 8.3 on MSDOS

so nobody feels it is any significant these days, right?

Which means that a package yoin can safely generate auxiliary files .yoin :)

@yo' ooooh

@PauloCereda :)

(working on the new package just now, my mom's at the doctors so I have some time in the waiting room)

@yo' msdos

@DavidCarlisle ok thanks

@JosephWright Please, what do you think, if I plan to use CamelCase for user-level macros, should I use it also for environments?

@egreg, @yo', @barbara: I have to typeset x inside mathmode with two different styles (depending on the style, the meaning is different). One will be the usual math italic. Suggestions for the other?

@PauloCereda bold italic, bold upright, or fraktur. Oh, or (in extreme case), there's blackboard lowercase in some fonts.

@PauloCereda \fcolorbox{red}{yellow}{$\mathfrak{x}$}

@yo' The original paper suggests sans serif, but I don't like it at all. I'd prefer bold italic...

@PauloCereda \bm then

gotta go, laterz

@yo' Thank you! :)

@DavidCarlisle ooh

@PauloCereda -- script or calligraphic is also available. choose the one that makes most sense to you in context.

@barbarabeeton would AMS publish a paper with x as I have above?

@PauloCereda -- oh, sorry; i wasn't paying attention. the scripty alphabets don't usually have lowercase.

Brilliant package, bm.

I wonder who wrote it.

@DavidCarlisle -- ams would reduce it to printing in black (provided the paper was accepted) unless the accepting editor deemed it mathematically necessary, or you could agree to pay for the extra cost of printing in color. an on-line version would include the color. (that's the current policy; who knows what changes might be made with the push for e-publication.)

@barbarabeeton No worries. :) I might end up with bold italic. :)

@PauloCereda it is but so is color, and for a small fee Barbara would let you use that ^^^^

@DavidCarlisle oooooh

@barbarabeeton Thankfully my work is on syntactic expansion and not polychromatic macros. :)

^^ They really exist!

@PauloCereda \mathsf{x} would not be so different from \times; on the other hand, \mathbf{x} is distinguishable from math italic x. Much more than \bm{x}.

@egreg Oh thank you!

I thought some here might enjoy this. I found it amazing. These poor folks have been asking Adobe to improve footnotes in inDesign documents, for 6 YEARS !! and still adobe indesign it seems does not handle footnotes well. Here is the forum post: forums.adobe.com/thread/619776 The first request as on Apr 18, 2010 6:27 AM, and last request was on Jan 26, 2016 1:38 PM . Everyone there asking Adobe to please please fix footnote. Amazing.

It must be really hard to code this in adobe. 6 years and nothing happened. wow.

Is there any easy to way to only partially draw a line in tikz?

(say, the first 75% of it?)

@Danu straight line?

Could someone help clean up this question (and its answer)? tex.stackexchange.com/questions/185349 Its important information, given that I think I am encountering the very issue today. But trying to make heads or tails of the question is hard -- the answer has been partially editted into the question posts, and its all very messy, with marked edits etc.

@Oxinabox @michal.h21 ^^

@yo' No, hah. Else it would be trivial.

A complicated line, of which only the end points are simple to write down (e.g. arc of ellipse, or more generally any Bézier curve)

@Danu [shorten >=10pt] should work there, but you have to give the amount

@yo' as in \draw[shorten...]?

By using \pgfmetadecoratedpathlength this can be tweaked to do what I want, thanks.

@Danu yep, see the manual's index, it's thre somewhere

Thanks.

New mod powers!

@JosephWright Can you impose @DavidCarlisle not to be rude to me?

@egreg Er, no

@JosephWright So what's the purpose of having new powers? ;-)

  Check failed with difference files
  - ../build/test/tl2e7.luatex.diff
  - ../build/test/tlb-ltluatex-001.luatex.diff
  - ../build/test/tlb0372.luatex.diff
  - ../build/test/tlb0942.luatex.diff
  - ../build/test/tlb1816.luatex.diff
  - ../build/test/tnfss7.luatex.diff
  - ../build/test/vlatex05.luatex.diff
  - ../build/test/vtl2e05.luatex.diff

@JosephWright full list from base ^^

@egreg: Amusing fact: I was reading a paper and was mesmerized about a math symbol. I could not find it anywhere! Then I found out why: my printer is almost out of toner and only the horizontal middle line in \in was fully printed. :)

@DavidCarlisle Rebuilding now (new download from Akira)

@DavidCarlisle All look 'legit': we can just commit those, yes?

@StefanKottwitz it is notpossible to upload blg files to goLaTeX. Can we (you) add a prominent note to change the file ending of LaTeX helper files to txt?

@JosephWright The fontspec question is easily solved:

fontspec.sty    2016/02/01 v2.5a Font selection for XeLaTeX and LuaLaTeX
  expl3.sty    2012/04/23 v3570 L3 Experimental code bundle wrapper

Look at the dates! ^^^^^

@PauloCereda Printing? What an outfashioned method.

@Johannes_B I added this extension

@StefanKottwitz Ah, merci :-)

@StefanKottwitz If you want, you can even tell about it: golatex.de/literaturverzeichnis-wird-nicht-erzeugt-t16769.html

Hi, is anyone here familiar/use with titleps?

For the bounty hunters... :)

@Johannes_B I'm attending a conference this week (Ocean Sciences in New Orleans), so don't have much time at the moment. Will see if I have time later.

@TorbjørnT. Take your time :-)

Is there any standard set of tools for documenting a key-value interface in the way that ltxdoc.cls/doctools.sty etc. support documenting macros, options etc.? (Allegedly environments, too, though I haven't figured that out yet.)

@JosephWright yes I think so (was driving, may only be sporadically online for a bit)

To all who do not have facebook: lucky you.

@yo' What happened? I'd like to know why I'm lucky. ;-)

@egreg you know what is a like, right?

@yo' More or less

@egreg well, a sort of +1 to anything: posts, photos, comments, etc. Now, they introduced like, love, haha, wow, sad and angry, all with the most ugly emoticons that shout: "Facebook is a bunch of idiots."

@Johannes_B I did it, thanks

@yo' OK, I'm lucky!

@egreg :)

@yo' This makes me..

@AlanMunn yes, that's it.

World will never be like before.

@yo' Notice, that people will still complain there's no "Dislike".

@AlanMunn have you seen SE sites where Rule 1 does not exist? That's what facebook would look like with minus ones.

@yo' No, I thankfully stay here most of the time, and lurk on a few other friendly sites.

@AlanMunn :)

I realized that I'm quite active on a good number of sites...