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6:12 AM
@DavidCarlisle so no Dodos.
 
 
3 hours later…
9:09 AM
I definitely didn't get any secret emails, specially from @DavidCarlisle
 
@PauloCereda ducks are good at secrets and truth
5
 
@DavidCarlisle ooh
 
 
2 hours later…
10:51 AM
Anyone know if there is an upper limit to how wide a tabularx can be? A PhD student is creating a very large poster (1m by 2m), landscape in three columns. If the width if a tabularx in one of the columns exceeds a certain size, the headers/cols collapse and I do not understand why
 
@daleif i wish people wouldn't use tabularx so much:-) It has some guards to avoid internal calculations exceeding maxdimen, but its arithmetic is just primitive tex dimen arithmetic and can be easily stressed, probably you can force it to make a smaller initial guess for X widths, do you have an NWE (send by mail if it's not very minimal)
 
@daleif without an example it is difficult to say if it is a feature, but tabularx for this sounds wrong anyway.
@DavidCarlisle ^^ improving my english spelling
 
@daleif just using p{.33\textwidth} and not using X would be a lot easier for TeX:-)
@UlrikeFischer wunderbar
 
The interesting part is, it works with \begin{tabularx}{0.96\linewidth} but fails at \begin{tabularx}{0.97...}.
Here the column is about 1380pt
 
11:09 AM
@daleif what does \tracingtabularx log for the working and not working cases?
 
11:32 AM
(tabularx) Table Width Column Width X Columns
(tabularx) 12813.13077pt 1380.0pt 12
(tabularx) Don't exceed \maxdimen
(tabularx) Reached minimum width, backing up.
@DavidCarlisle ^^^ and the X columns basically have no proper width
MWE:
\documentclass{article}
\RequirePackage{geometry}
\geometry{a0paper}
\usepackage{xcolor,array}
\usepackage{tabularx}
\usepackage{booktabs}
\newcolumntype{C}{>{\centering\arraybackslash}X}
\begin{document}

\rule\textwidth{3mm}

% 1360pt works
\begin{minipage}{1380pt}

\tracingtabularx

\setlength{\tabcolsep}{0pt}

\begin{tabularx}{\linewidth}{
p{4.2cm}
|p{8.9cm}
*{11}{|C}
}
\toprule
&
&
\multicolumn{2}{c}{huh}
& A
& B
& C
& D
& E
& F
& \shortstack[c]{G\\H}
& \shortstack[c]{I\\J}
& K
\\
\midrule
It seems to work just fine if I remove the 4 lines in \TX@arith dealing wit don't exceed ...
Cheating:
\makeatletter

\patchcmd\TX@arith{%
\ifdim\TX@col@width>\@tempdimb%
}{%
\ifdim\TX@col@width>\maxdimen%
}{}{\ERROR}

\makeatother
 
11:52 AM
Thanks, I'll check later. Reached minimum width, backing up. means it's decided it needs to make negative widths so it gives up and just makes them 1em so something gets printed, but it's possible its arithmetic got confused before that.
 
12:09 PM
Well it seems to start out with a col width of the first arg to tabularx (here 1500pt) and then sets \@tempdimb = \maxdim / 12 which is less than 1500pt and thus stops right away. Not sure what the proper approach for it is here.
 
12:20 PM
@daleif perhaps in \TX@endtabularx one could set \TX@old@table to something slightly different to \maxdimen? \TX@old@table\dimexpr\maxdimen-1sp\relax @DavidCarlisle
 
1:07 PM
@UlrikeFischer hmm possibly, yes
 
 
2 hours later…
2:53 PM
@barbarabeeton you don't remember the ppppp author's name do you?
 
@DavidCarlisle -- I think I can retrieve it. You like that example, huh?
 
I had a colleague who had to fight with a publisher for additional p at one time.... @barbarabeeton
I wonder if it was related to ams.org/journals/mcom/2015-84-293/S0025-5718-2014-02865-2/… ... @barbarabeeton
 
@DavidCarlisle -- Don't think so, but not sure. Author's first name is Larry, and I think last name begins with E. (I may remember the name at 03:00.)
 
I had a phd colleague a year above me who's thesis appears in the refs there, that was published by j algebra not ams, but that area (finite groups) does like to use lots of different font styles. he had 5 (I think) p in his thesis.
 
3:13 PM
@DavidCarlisle -- It may be this book: Invariant Theory of Finite Groups by Larry Smith and Mara Neusel. (If so, I was wrong about the "E".)
 
oops I know them:-) @barbarabeeton
 
@DavidCarlisle -- Is that a good example of appearance = meaning?
 
@barbarabeeton Not Lawrence C. Evans?
 
@mickep -- Thanks for the suggestion, but I don't think so. The name of the co-author of the book I cited sounds familiar.
 
@DavidCarlisle are you back to the "find literature"?
 
3:40 PM
@barbarabeeton Well, worth a try. 🤷🏻‍♂️
 
@mickep -- David's "oops, I know them" is the clincher.
 
@barbarabeeton Ah, I did not read carefully enough.
 
4:18 PM
@UlrikeFischer no, I'm not playing that game
 
@DavidCarlisle then why are you looking for p's?
 
@UlrikeFischer barbara mentioned remembering an author of an ams monologue who used 5 lower case p styles, and I feared it was a friend of mine
 
@DavidCarlisle oh ;-)
 
4:56 PM
@UlrikeFischer it wasn't who I feared but it was someone I knew and met at a few conferences (and a nice week in Dagstuhl castle a long while ago)
 
 
1 hour later…
6:08 PM
@DavidCarlisle The book by Neusel and Smith linked above also includes several types of upper case P.
 
@barbarabeeton ^
 
@mickep -- You've got a copy? Can you identify the page(s) on which the "p"s (and "P"s) are defined? It would be really useful to get a scan showing the evidence.
 
6:50 PM
@barbarabeeton The department library had it. I can check next week.
 
7:06 PM
@mickep -- Thanks.
 
@barbarabeeton But I don't know if it is worth scanning. They should trust people...
 
@mickep -- While I agree, the UTC has their own ideas about what constitutes evidence, much less proof.
 
@mickep would you trust @barbarabeeton?
 
@DavidCarlisle Well, if I doubt something she says would be in a book, I could go and look myself. (I just assume they have access to libraries.)
 
@DavidCarlisle -- Well, if she finds that she's been in error, she's willing to admit it.
@mickep -- In that regard, assume nothing.
 
 
2 hours later…
9:05 PM
@PauloCereda Hi! Duck person! Quack quack! :p
 
@Plergux <3
 
 
1 hour later…
10:10 PM
user image
5
Spotted today while driving.
 

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