TeX, LaTeX and Friends

12:09 AM

@StefanKottwitz -- If I remember correctly, Madeira is reputed to be best after it has sloshed around in its barrels in the bowels of a ship for a voyage or two. That's a voyage or two in a sailing ship.

@PauloCereda -- But you claimed that you couldn't be understood in mainland Portugal.

On a totally different subject, snow and slush are expected here tomorrow. I think I shall stay indoors. The last time I went out into freezing weather (well, it was freezing drizzle), I ended up with a titanium hip joint after a crew of very nice firemen (well, they were all male) rescued me from the icy sidewalk. For contrast, in northern Florida, a temperature of 90F (33C) is expected tomorrow. Ridiculous.

@Plergux -- Reykjavik! My husband and I spent last New Year's in Reykjavik. I'd visited before, and want to go back again. I love Icelandic wool/yarn -- it's so nice to knit with, and it comes in such beautiful (undyed) colors.

Skillmon

7:02 AM

@barbarabeeton iirc, there is quite some distance to Florida from Rhode Island, that's as if I'd say weather in Germany is cold, but in south Italy the weather is nice.

Plergux

@barbarabeeton :D I love yarn too :D New years is crazy though :| Don't like the noise :| But I can't wait for it to start snowing :p

Paulo Cereda

7:47 AM

@barbarabeeton :)

@Skillmon yay!

Paulo Cereda

8:04 AM

@barbarabeeton I think I could not be understood everywhere. :)

Paulo Cereda

8:38 AM

@JosephWright Fedora 33 looks gorgeous in my laptop.

Plergux

@PauloCereda Thank you :) I love sheep. We had loads back home on our farm. Until they built a damn aluminium processing plant and it wasn't safe any more :,( Though, fun fact, the house I lived in is now a catholic monastery XD

@Skillmon Yay for sheep! :D

Paulo Cereda

@Plergux ooh <3

Thankfully sheeps cannot have a baaaaaaaaaa-d day. :)

Plergux

@PauloCereda Heh heh heh... I think Shaun would disagree with you there :p

Paulo Cereda

@Plergux ooh Shaun the sheep :)

Plergux

8:58 AM

@PauloCereda I love Shaun the sheep because it's all done without words. It's all expressions and "international noises" :p (Rather like Mr. Bean. :p)

Paulo Cereda

10:15 AM

@Plergux ooh :)

Harald Hanche-Olsen

10:33 AM

@PauloCereda You blew right through 8888 while I was busy lecturing, so I didn't manage to catch the crucial moment. |-(

3

@PauloCereda Oh wait, it was last night. I was tricked by the am/pm thingy … I went to bed early last night, should have staid up a bit longer I guess.

Paulo Cereda

@HaraldHanche-Olsen oh no

@HaraldHanche-Olsen ooh lectures

We need another milestone

Joseph Wright

10:48 AM

@PauloCereda Just joined Eduoroam from Fedora ... slightly tricky but got it working

@PauloCereda Also works with my graphics tablet, except that is not working properly for other reasons ...

Paulo Cereda

@JosephWright cool

@JosephWright oh no

Joseph Wright

@PauloCereda Hardware issues, I think: I just bought another HDMI adaptor to check it out, worked for like 5 minutes then stopped: I think the cable is bust :(

@PauloCereda Had to set up manually, not as smooth as on the Mac or Windows (but found some instructions)

@PauloCereda Automatically handles pen input, which is nice

Paulo Cereda

@JosephWright Fedora is a bit tricky when talking closed hardware, but doable. :)

Joseph Wright

@PauloCereda Oh, the tablet was fine: I needed instructions for Eduroam (as the defaults are not the right login method)

Paulo Cereda

@JosephWright eek Eduroam

Joseph Wright

10:53 AM

@PauloCereda Nowadays it's pretty easy to use, most of the time (I've been using it from the eary days when it was 'interesting')

Paulo Cereda

@JosephWright can't stand it anymore

Joseph Wright

@PauloCereda No? Why not?

@PauloCereda Better than the alternative of having to use metered wifi or no wifi at all ...

Rmano

eduroam works quite well here (for closed devices often better than the native university network --- you can't print from there but well). And the automatic connection in half the planet is nice.

I had my phone connecting now and then when walking around Pisa ;-)

Joseph Wright

@Rmano We have no 'university network': Eduroam or a commercial system called 'the Cloud', which is really for non-academic visitors

samcarter_is_at_topanswers.xyz

@JosephWright Which one do you have? I'm pondering the idea of getting me one...

Joseph Wright

11:06 AM

@samcarter_is_at_topanswers.xyz Huion Kamvas 13: work bought it. Other than the apparent issue with the cable, I'm happy with it.

samcarter_is_at_topanswers.xyz

@JosephWright Thanks!

Paulo Cereda

@JosephWright because it reminds of how rotten our research is

Marcel Krüger

@JosephWright Are you using wpa_supplicant or iwd?

Paulo Cereda

@MarcelKrüger Fedora uses supplicant

Joseph Wright

@MarcelKrüger ???

@PauloCereda Oh, right

Paulo Cereda

11:13 AM

@JosephWright sorry, I am sour

2

Marcel Krüger

@JosephWright I switched my Arch system from a wpa_suppliciant backend to iwd some months ago and since then eduroam is broken... Now I have to switch between them whenever I go to the University, so I was hoping that you might have figured out what's going on there.

Paulo Cereda

@Plergux ^^ for you

Plergux

@PauloCereda d(^-^)b

Paulo Cereda

I forgot I had 3 sheep. :)

Joseph Wright

@MarcelKrüger Er ... all I did was take ucl.ac.uk/isd/how-to/connecting-to-eduroam-wi-fi-linux and adapt for my institution!

@MarcelKrüger And Fedora rather than Ubuntu

Plergux

11:17 AM

@PauloCereda :D

David Carlisle

@PauloCereda about to batter the sheep with a cricket bat?

Paulo Cereda

@DavidCarlisle oh no

David Carlisle

@PauloCereda Chefs call it "tenderising"

Paulo Cereda

@DavidCarlisle OH NO

Plergux

@DavidCarlisle XD

Skillmon

11:27 AM

@PauloCereda and directly started working for the 9999.

Paulo Cereda

@Skillmon ooh

@Plergux ^^ ooh there's a sheep Pokémon too named Wooloo

Harald Hanche-Olsen

@PauloCereda The obvious choice is 9999.

Paulo Cereda

@HaraldHanche-Olsen ooh we could go there

Plergux

@PauloCereda I know, I play Pokémon Go :p Also Mareep:

Skillmon

@JosephWright my phone doesn't connect with the eduroam in my university :(

@Plergux VOLTILAMM

Plergux

11:40 AM

@Skillmon :D

Paulo Cereda

@Plergux How nice! I have Pokémon Let's Go for the Switch and Y for my 3DS. :)

Skillmon

@MarcelKrüger no love for netctl?

@MarcelKrüger I think you can set up an iwd profile which directly accesses wpa_supplicant. That's how I connect to eduroam on my arch (but using netctl, so not entirely sure how this would be done with iwd).

@PauloCereda that one is too new for me :(

Paulo Cereda

@Skillmon oh

Skillmon

@PauloCereda though I like some of the new ones, I'm still stuck at 251 (and even then I prefer 151).

Paulo Cereda

@Skillmon I can relate to that. :)

@Plergux an electric sheep!

Marcel Krüger

11:46 AM

@Skillmon No, I switched my server to networkd some time ago because of better integration in the remaining boot setup and then my notebook followed for consistency.

Harald Hanche-Olsen

Do Androids Dream of Electric Sheep?

Do Androids Dream of Electric Sheep? (retitled Blade Runner: Do Androids Dream of Electric Sheep? in some later printings) is a science fiction novel by American writer Philip K. Dick, first published in 1968. The novel is set in a post-apocalyptic San Francisco, where Earth's life has been greatly damaged by a nuclear global war, leaving most animal species endangered or extinct. The main plot follows Rick Deckard, a bounty hunter who is tasked with "retiring" (i.e. killing) six escaped Nexus-6 model androids, while a secondary plot follows John Isidore, a man of sub-par IQ who aids the fugitive...

Paulo Cereda

@HaraldHanche-Olsen ooh a novel

@Skillmon what's your machine name, mr. rabbit?

Plergux

@PauloCereda I know, right? It's so cute XD I just use my phone. I don't have any small gaming devices, except the tablet that my son used to own. I've been thinking I could buy one but even the low range ones are hundreds of dollars D,X everything is so damn expensive here.

Paulo Cereda

@Plergux Oh I definitely can relate to that! Brazil has also a wacky law that considers video games as gambling, so they are taxed +60%!

Plergux

@HaraldHanche-Olsen Yup yup. As in so many cases, the book is better. :p

Marcel Krüger

11:50 AM

@Skillmon The problem is that iwd is an actual independent implementation of the whole WPA stack, so wpa_suppliciant can't access the interface while iwd is working with it. Anyway, the problem is mostly solved by Covid: I can't go to the University, so I don't have to worry about their WiFi...

Skillmon

@PauloCereda you mean my hostname, or my laptop's fabricate number?

Paulo Cereda

@Skillmon hostname

Plergux

@PauloCereda O.O that's silly. Then again, I've listened to people talk about computer games like they're this great evil destroying our children. Like, Fortnite sure, but there are so many that are intricate and educational! Not to mention a prime opportunity to connect with your kids! (whether it is actually playing the games or watching Youtubers play the games XD)

Skillmon

@PauloCereda thinkarch (it's a Thinkpad and running Arch Linux... Rabbits are creative)

Paulo Cereda

@Plergux oh definitely! I have this game for the Switch at the moment: youtube.com/watch?v=5c9QZFeVrRY

@Skillmon ooh :)

@Skillmon it's similar to @yo' 's toheshiba. :)

My hostnames refer to places.

This is cambridge.

Skillmon

11:55 AM

@PauloCereda No, this is Patrick!

Paulo Cereda

@Skillmon LOL I WUB YOU

Skillmon

@PauloCereda my phone's is even worse, just the OS name: Sailfish

Paulo Cereda

@Skillmon ooh :)

Plergux

@PauloCereda LOL, that looks hilarious :D

Skillmon

@PauloCereda and that one is much better than thinkarch (on which my user is named archie, something I thought would be funny; just a few hours later I found out that in the Arch wiki's beginners tutorial, the example user is named archie)

Paulo Cereda

12:00 PM

@Skillmon ooh :)

Marcel Krüger

@Skillmon You were smart and made it long enough to be reasonably unique. I'm working on yoga (It's a Thinkpad Yoga, so no creativity here) which worked fine until I configured my local DNS to resolve hostnames. yoga is a delegated TLD, so I always got DNSSEC errors.

Skillmon

@MarcelKrüger how about using a hash of your name? :)

@MarcelKrüger my new host name would be 05cf4dbc3e5d8df2175e672b66700db31914840e. Doesn't that sound lovely and memorable?

Paulo Cereda

@MarcelKrüger ooh yoga

Marcel Krüger

@Skillmon Today, everyone loves SHA256. So I would end up with 890cabe271136403326f8252c59cfdd47160fa63fe7a37801d3bffc1dbbf03f3. Let's see if I still remember that tomorrow.

Paulo Cereda

@MarcelKrüger Yes! I am somehow addicted to writing checksums with this hash.

Skillmon

12:10 PM

@MarcelKrüger that's why I've used SHA1, gives shorter and way easier to remember results.

Marcel Krüger

@Skillmon MD5 would be even shorter: d6194c68fcc7e79bb57401be603cb1cc

Paulo Cereda

@MarcelKrüger bah how about CRC32? :)

@MarcelKrüger @Skillmon ooh we could use Gödel numbering too

Marcel Krüger

@PauloCereda I wrote a C++ constexpr implementation of the CRC family yesterday...

Paulo Cereda

@MarcelKrüger ooh cool

yo'

@PauloCereda Oh that one is on pension. Currently I'm on TOMHELL.

2

Paulo Cereda

12:22 PM

@yo' ooh

Rmano

@MarcelKrüger well, 890cabe is easy to remember (at least in Spanish, "cabe" means "it fits" or something similar)

Skillmon

@yo' Oh, nooo! I thought you were a good guy, why did you go to hell?

yo'

@Skillmon with surname Hejda and a Dell computer, I had to :D

Skillmon

@yo' (I didn't know your surname, only Tom)

yo'

@Skillmon ah right, that's likely not written on many places. Definitely not on OL websites, there are only first names there.

(and I rarely communicate from my private work email with anyone)

Paulo Cereda

12:39 PM

TOM IS AWESOME

2

yo'

12:55 PM

@PauloCereda awwww

Joseph Wright

@yo' The longer standing people know ;)

yo'

@JosephWright yep :-)

Skillmon

1:16 PM

@JosephWright again, it's not my fault that I'm young!

I did a TikZ do-it-for-me question :(

samcarter_is_at_topanswers.xyz

@Skillmon the red and green make it look like an X-mas tree

Skillmon

@samcarter_is_at_topanswers.xyz I was just too lazy to match OPs colours better (ironic)

Plergux

@Skillmon Back when I was starting to fiddle with computers (in the nineties! O.o) the standard answer to this kind of question would have been RTFM :p

Skillmon

@Plergux I know. I just happen to be waiting for something and had time to spare... :)

Plergux

@Skillmon Yeah, I get'ya. Though my forays into answering questions have usually been to putting off doing something else I was supposed to be doing XD

Ulrike Fischer

1:49 PM

@Plergux that is not the type of question you can answer by reading the manual. You only need to look at skillmon's answer: if requires quite some skill to decide to set this up as pic, and how to build the loop etc.

Skillmon

@UlrikeFischer unfortunately, my skill level doesn't suffice for everything. I know one could add anchors to a shape, but I have no idea how I could add anchors to a pic so that one could use anchor=south or similar to move the pic. Instead the reference point is fixed as the tip of the pyramid.

I guess the answer might very well be: That's not possible, use a shape.

Plergux

2:04 PM

@UlrikeFischer Fair enough.

Marcel Krüger

@UlrikeFischer (and @ other people who might have LuaTeX documents and are willing to help test experimental code) I recenty pushed some luaotfload HarfBuzz discretionary changes to the dev branch. I got it to a point where it no longer segfaults in my testfiles, but it could use some additional testing.Could you take a look at it?

Ulrike Fischer

@MarcelKrüger is this about the question on the lualatex-list?

Marcel Krüger

@UlrikeFischer No.

Which question?

Ulrike Fischer

@MarcelKrüger I meant the luatex list. Some one reported an "assertion from textlang.c" (it sounded like an engine problem, but I didn't try yet).

@MarcelKrüger beside this: I have pulled the new dev and will use it, but I have no idea what to test, so it will only be a bit random trying.

Marcel Krüger

@UlrikeFischer Found it and reproduced. I'll look into it.

@UlrikeFischer Thanks. Basically all discretionary stuff in HarfBuzz changed, so most testing is currently on the: Does not break typical documents level. Beside that it fixes some issues where ligatures where broken if a discretionary was inside and it should drop less discretionaries in kerning heavy test.

So mostly it nees testing with documents where people complained that HarfBuzz is losing their discretionarie. (We still loose discretionaries, but it got a bit better)

Ulrike Fischer

2:21 PM

@MarcelKrüger OK, I don't have so many with harfbuzz, but as polyglossia enables it by default, I will probably come around a few. Another question: If I want to exchange one char in a font by a similar one from another font, is using combo still the best method?

Marcel Krüger

@UlrikeFischer Yes.

Rmano

2:45 PM

@Skillmon Yes, FWIK that is the answer --- you can't add "anchors" to pics (a pity). You can define internal node and coordinates references (with -something) but you can't use that as anchor.

David Carlisle

3:25 PM

@JosephWright you persuade me to be all modern and 21st century and now I'm in trouble with arxiv:(

Paulo Cereda

quack

@DavidCarlisle /hugs

David Carlisle

@PauloCereda dinner

Ulrike Fischer

@DavidCarlisle ?

David Carlisle

@UlrikeFischer github.com/davidcarlisle/graphics-pln/issues/3

Paulo Cereda

@DavidCarlisle oh no

Ulrike Fischer

3:29 PM

@DavidCarlisle hm ;-)

Joseph Wright

@DavidCarlisle ???

David Carlisle

@JosephWright see gh link in reply to Ulrike above

Joseph Wright

@DavidCarlisle Oh for goodness sake: they are not using pdftex for plain submissions???!!

David Carlisle

@JosephWright psfrag I would guess

Paulo Cereda

3:50 PM

@JosephWright /baa

Joseph Wright

4:15 PM

@DavidCarlisle Sure, use \pdfoutput=0

Paulo Cereda

@JosephWright you won't believe what crashed my system...

Joseph Wright

@PauloCereda ??

Paulo Cereda

@JosephWright colours :)

Joseph Wright

@PauloCereda Ooop

Paulo Cereda

@JosephWright Actually, LS_COLORS.

Then I fixed it :)

David Carlisle

4:22 PM

@JosephWright that is then etex isn't it? (real etex isn't in texlive any more)

samcarter_is_at_topanswers.xyz

@PauloCereda try xcolors instead :D

Ulrike Fischer

@DavidCarlisle ? I have etex. I mean I have wrapper with this name.

David Carlisle

@UlrikeFischer it's called etex but it's really pdftex with \pdfoutput=0 it includes the pdftex extensions \pdfoutput for example.

Ulrike Fischer

@DavidCarlisle yes, just realized that you mean this.

@DavidCarlisle they should be happy to get a bit more, in case some of their users input expl3 in plain ;-)

David Carlisle

@UlrikeFischer I don't think I want to do \protected=\relax in the public version really. But not breaking arxiv seems like a good plan

Paulo Cereda

4:30 PM

@samcarter_is_at_topanswers.xyz ooh :)

Ulrike Fischer

@DavidCarlisle well yes. But I would wait and see what they answer to your various suggestions. Perhaps they tell you, "oh we didn't know that we can use etex, nice solution."

David Carlisle

@UlrikeFischer I hope so

samcarter_is_at_topanswers.xyz

@PauloCereda ... and if this does not solve the issue, there is always the xxcolor package

Paulo Cereda

@samcarter_is_at_topanswers.xyz how about the zcolor?

samcarter_is_at_topanswers.xyz

@PauloCereda you don't like y?

Paulo Cereda

4:34 PM

@samcarter_is_at_topanswers.xyz oopsie sorry :)

Paulo Cereda

4:46 PM

Anyone for a group hug?

/hug

David Carlisle

@samcarter_is_at_topanswers.xyz qwerz keyboard error

@PauloCereda no

Paulo Cereda

@DavidCarlisle oh

samcarter_is_at_topanswers.xyz

@DavidCarlisle I'm using qwerty :D

(don't want to break my fingers with qwertz)

Skillmon

@DavidCarlisle why not do a \ifx\protected\undefined\let\Gin@protected\empty\else\let\Gin@protected\protected\fi?

Paulo Cereda

@samcarter_is_at_topanswers.xyz David already has broken fingers, he uses emacs. :)

> Ever found yourself hesitating/refusing to take the last donut or slice of pizza available? If so, you've experienced a phenomenon known as the "diffusion of entitlement." We often inhibit ourselves from consuming something scarce because we feel it is not our right.

Last slice of pizza? Heck yeah

samcarter_is_at_topanswers.xyz

5:00 PM

@PauloCereda well, that explains teh

Skillmon

@PauloCereda I eat mine, then I eat a third of my wife's :)

Paulo Cereda

@Skillmon ooh poor miss rabbit :)

Skillmon

@PauloCereda she pretends to be fine with it (or actually is, who knows)

Paulo Cereda

@Skillmon as long as you have pizza, everything is awesome :)

Skillmon

@PauloCereda Lego?

Paulo Cereda

5:01 PM

@Skillmon ooh I need to listen to that song again

Everything Is AWESOME!!! -- The LEGO® Movie -- Tegan and Sara feat. The Lonely Island

►

David Carlisle

@Skillmon I was trying to avoid changing the core latex files, we took a policy decision a while back that we wouldn't guard etex usage with non etex fallback (handling rollback is hard enough as it is) so there is an unguarded \protected there by design

@Skillmon mostly to make @JosephWright happy :-)

samcarter_is_at_topanswers.xyz

@PauloCereda Before you say such things, check what toppings are on the pizza

Paulo Cereda

@samcarter_is_at_topanswers.xyz oopsie, that's true :)

David Carlisle

@samcarter_is_at_topanswers.xyz ham and pineapple, obviously

samcarter_is_at_topanswers.xyz

6 mins ago, by Paulo Cereda

@samcarter_is_at_topanswers.xyz David already has broken fingers, he uses emacs. :)

replace "fingers" by "taste" :D

Paulo Cereda

5:04 PM

@samcarter_is_at_topanswers.xyz see email. :)

samcarter_is_at_topanswers.xyz

@PauloCereda Hahaha :D

Paulo Cereda

@samcarter_is_at_topanswers.xyz :)

samcarter_is_at_topanswers.xyz

twitter.com/OdedRechavi/status/1317574560695373824

3

Paulo Cereda

@samcarter_is_at_topanswers.xyz LOL

@Skillmon Now I want to watch the Lego movie again

samcarter_is_at_topanswers.xyz

@PauloCereda The comments about "metabites" and "secure shell login" are the best

Paulo Cereda

5:18 PM

@samcarter_is_at_topanswers.xyz LOL also Tur(tle)ring machine

samcarter_is_at_topanswers.xyz

@PauloCereda yes, that's also great :)

barbara beeton

5:42 PM

@Skillmon -- The distance by air between Providence and Jacksonville is just under 1000 miles, or 1550 km. since there is also an east-to-west component, the north-south distance is maybe about 100 km less.

BambOo

5:53 PM

Hello guys !

Faheem Mitha

If I have \def\x{1.0} and \def\y{2.1}, does TeX have any support for \defxplusy, which outputs the sum of these two?

Paulo Cereda

@BambOo hello

samcarter_is_at_topanswers.xyz

@BambOo vfill won't do the trick in a centred frame

yo'

@FaheemMitha Check pgfmath. Something like \pgfmathsetmacro\xplusy{\x + \y} (untested)

Faheem Mitha

@yo' Ok. Thank you. Can it do something like a*\x + b*\y as well?

BambOo

6:04 PM

I do not mean to whine, but could you tell me if I miss some new rule or anything. Or is this some dislikeable internet behavior ?

yo'

@FaheemMitha basically anything. As I said, check the documentation.

BambOo

@samcarter_is_at_topanswers.xyz Thanks for the tip, I guess some \begin{frame}[t] should do the trick ^^

David Carlisle

@FaheemMitha you can use dimen arithmetic or l3fp or pfmath or ....

samcarter_is_at_topanswers.xyz

@BambOo Better use a minipage

David Carlisle

@samcarter_is_at_topanswers.xyz strange response to "hello" :-)

samcarter_is_at_topanswers.xyz

6:07 PM

@BambOo a t frame has fill at the bottom and it will fail for the same reason

Paulo Cereda

@DavidCarlisle quack

Faheem Mitha

@DavidCarlisle dimen arithmetic?

samcarter_is_at_topanswers.xyz

@DavidCarlisle the strange quark is not my favourite one

BambOo

@samcarter_is_at_topanswers.xyz I updated the answer, thanks

Sorry to bother you with this, but I can't figure this on my own. These last weeks, I posted about 2-3 answers, which got unexplained downvotes for (I believe) no obvious reasons. Here they are: tex.stackexchange.com/a/568718/141947 tex.stackexchange.com/a/566665/141947 tex.stackexchange.com/a/566617/141947 tex.stackexchange.com/a/565774/141947.

I do not mean to whine, but could you tell me if I miss some new rule or anything. Or is this some dislikeable internet behavior ?

David Carlisle

6:22 PM

@FaheemMitha `\dimenexpr \x pt + \y pt\relax

Faheem Mitha

@DavidCarlisle Oh

David Carlisle

@BambOo it's best not to worry about it too much (unless you think someone is targetting you personally, in which case you can flag the answers and ask the moderators to look) if you post enough answers you collect some downvotes, sometimes it's just impossible to guess why (I got one the other day on an answer that was years old, someone just passed by and downvoted, no comment as to why)

@FaheemMitha what are you planning to do with the result, if you are going to use it as a length anyway then that is the simplest, otherwise you need to remove the pt from the end, (latex has a \strip@pt to do that, for this reason)

Faheem Mitha

@DavidCarlisle Yes, use it as a length.

David Carlisle

@FaheemMitha convert to lengths first then, then you can add

Faheem Mitha

@DavidCarlisle Ok. Where does the documentation for this command live?

David Carlisle

6:33 PM

@FaheemMitha which, \dimexpr ? texdoc etex but that is just a convenience the classic tex would be \dimen0=1.5pt \advance \dimen0 by 2.5pt etex just allows you to do it in one line \dimen0=\dimexpr 1.5pt + 2.5pt\relax

BambOo

@DavidCarlisle Thanks, I can't figure if someone is targetting me personally. This has just happened multiple times in a short time window.

Faheem Mitha

6:52 PM

@DavidCarlisle Yes \dimexpr. Can it also do a linear combination? Like ax+by?

David Carlisle

@FaheemMitha yes (or no)

@BambOo I usually just blame vim users and move on, the rep points are mostly nonsense anyway

Paulo Cereda

@DavidCarlisle ooh maybe

@DavidCarlisle oi

David Carlisle

@PauloCereda ?

Paulo Cereda

@DavidCarlisle blaming vim users :(

David Carlisle

@PauloCereda I know:-)

Paulo Cereda

7:00 PM

@DavidCarlisle ooh

David Carlisle

@PauloCereda emacs users wouldn't do such a thing. no one cares what texzzzz editor users do, so that leaves vim users to take the blame.

Paulo Cereda

@DavidCarlisle Tell that to JW

David Carlisle

@FaheemMitha vvv

$ pdftex '\showthe\dimexpr 1.5pt*2 + 7pt\relax'
This is pdfTeX, Version 3.14159265-2.6-1.40.21 (TeX Live 2020) (preloaded format=pdftex)
 restricted \write18 enabled.
entering extended mode
> 10.0pt.

Paulo Cereda

@DavidCarlisle no catcode changes? I am disappointed. :)

@DavidCarlisle better

@DavidCarlisle by the way, tomorrow I will talk to the Italian TeX community. Suggestions for a topic?

@DavidCarlisle coadcode :)

David Carlisle

pdftex '\catcode`j=0 jshowthejdimexpr 1.5pt*2 + 7ptjrelax'

Paulo Cereda

7:10 PM

@DavidCarlisle ooh

David Carlisle

@PauloCereda sui benefici della farcitura della pizza all'ananas

@PauloCereda you may need protection afterwards, but it'll be fine.

Paulo Cereda

@DavidCarlisle it's Zoom, no worries. :)

@DavidCarlisle bravo, grazie.

@Skillmon I was browsing the new icon themes in the Fedora respository and found one (We10X) that mimics the Windows 10 icons. I LOL'ed when I saw the LibreOffice Writer icon turning into Microsoft Word. :)

Faheem Mitha

@DavidCarlisle Thank you.

BambOo

@DavidCarlisle It's not really about rep points indeed, more likely about self-improvement. Critics are welcome, as long as they are substantiated

Skillmon

7:25 PM

@PauloCereda poor LibreOffice got degraded :)

@barbarabeeton I'm so thankful that you're considerate of us non-empiric people to always translate for us :)

Paulo Cereda

@Skillmon indeed. :)

barbara beeton

@Skillmon -- Well, if we drive across the border into Canada (which I hope we'll be able to do again sometime!) the route signs, at least a lot of them, show kilometers, so it's something that some of us have to get used to. (I still have problems with changing between statute miles and nautical miles, but if I'm navigating a sailboat, I try to stay within sight of shore.)

samcarter_is_at_topanswers.xyz

7:42 PM

@BambOo From the list of posts, I'd only have a problem with tex.stackexchange.com/a/565774/36296 I think this does not solve the problem

tex.stackexchange.com/a/566617/36296 looks fine after the edits, but in the original version it also did not solve the problem

hpekristiansen

In this TikZ answer: tex.stackexchange.com/a/568980/8650 I am reusing not just coordinates but "(-0.015,0.005) ellipse (0.17 and 0.46)" a lot. How do I best define/name this path in the start of the TikZ picture?

Torbjørn T.

@hpekristiansen You could use \newcommand

BambOo

8:02 PM

@samcarter_is_at_topanswers.xyz I can understand these two answers seem like non-answers, as they mostly acknowledge the initial beamer behavior. I will try to improve them. Thanks for your remark.

Skillmon

@barbarabeeton oh, you're sailing? Nice. I used to sail a bit, too, but only on a small lake 5 minutes by bicycle from my parents house.

David Carlisle

@PauloCereda you should use that as your title slide

barbara beeton

@Skillmon -- We haven't been sailing for a few years, but there was a period when we explored much of the Chesapeake Bay in a not very large boat, but one with bunks and a galley. To go farther afield, I wouldn't feel comfortable unless I were much more skilled in celestial navigation.

hpekristiansen

8:35 PM

@TorbjørnT. Thanks - it worked. I should have known as I have seen it used also for TikZ before.

David Carlisle

@UlrikeFischer seems to be the day for this tex.stackexchange.com/a/568984/1090

Ulrike Fischer

@DavidCarlisle you are so fast

David Carlisle

@UlrikeFischer I'd practiced earlier

Ulrike Fischer

@DavidCarlisle ;-). It is interesting how this questions always came in bundles ...

David Carlisle

@UlrikeFischer I nearly added, "did you submit a paper to arxiv earlier today"

Ulrike Fischer

8:46 PM

@DavidCarlisle ;-)

David Carlisle

@UlrikeFischer but the log here shows my gh answer was wrong seems I'm using detokenize as well, how come that didn't error I'd better trace...

Ulrike Fischer

@DavidCarlisle I get the \detokenize only with the second example.

David Carlisle

@UlrikeFischer graphicx.tex in graphics-pln works around detokenize, i shoudl do same with protected i suppose

samcarter_is_at_topanswers.xyz

@UlrikeFischer That's really an interesting phenomenon. For the broken bold math font in beamer this was the same. When did you change the font handling, something like half a year ago? And then suddenly multiple questions pop up within a few days.

David Carlisle

@UlrikeFischer yes the eplain version skips graphicx.tex and inputs the .sty directly, tough:-)

LaTeXereXeTaL

9:00 PM

With no classes to teach on Fridays, I had a good long lie-in today and plan to spend most of the weekend writing code.

Ulrike Fischer

9:18 PM

@samcarter_is_at_topanswers.xyz yes, latex changed this in the februar release. It does improve quite a lot things regarding the series and shapes (but apart from Frank probably nobody already understand all of it, and I suspect that some packages still need to adapt).

samcarter_is_at_topanswers.xyz

@UlrikeFischer It is funny nobody noticed until October and then suddenly multiple users at once. I wonder if this is maybe connected to some release in linux distributions or similar.

David Carlisle

@UlrikeFischer ctan.org/incoming

@samcarter_is_at_topanswers.xyz overleaf switching to 2020

Ulrike Fischer

@DavidCarlisle what did you do?

David Carlisle

@UlrikeFischer I made it work again

@UlrikeFischer it was already doing tokenize so i did same for protected

\let\GRAPHICS@detokenize\detokenize
\ifx\detokenize\@undefined
  \def\detokenize#1{#1}
\fi
\let\GRAPHICS@protected\protected
\ifx\protected\@undefined
  \let\protected\relax
\fi
\input graphicx.sty
\let\detokenize\GRAPHICS@detokenize
\let\protected\GRAPHICS@protected

Ulrike Fischer

@DavidCarlisle now that you know how it works, we can add more new primitives ;-)

David Carlisle

9:32 PM

@UlrikeFischer only if they are only used at load time:-)

samcarter_is_at_topanswers.xyz

@DavidCarlisle Oh, so we can blame @yo' :D

David Carlisle

@samcarter_is_at_topanswers.xyz why not @UlrikeFischer ?

samcarter_is_at_topanswers.xyz

@DavidCarlisle I wanted to give her a short break, I'm sure the next issue will come up soon

Ulrike Fischer

@samcarter_is_at_topanswers.xyz I'm quite addicted to blames. I worked hard on avoiding that the newcomers take them away from me.

samcarter_is_at_topanswers.xyz

@UlrikeFischer :D Ok, if you insist, I blame you

LaTeXereXeTaL

10:00 PM

Reflecting back on @samcarter_is_at_topanswers.xyz's advice I think I am going to break up my package into two or three smaller ones to make each one more efficient and easier to individually maintain.

hpekristiansen

10:52 PM

Why is Tikz even odd rule applied when the shape is a circle?

\documentclass[tikz]{standalone}
\begin{document}
\begin{tikzpicture}
\fill[red] (0,0) circle (1) (0,0) rectangle (2,2) ;
\fill[green] (4,0) rectangle (6,2) (5,1) rectangle (7,3);
\end{tikzpicture}
\end{document}

Ulrike Fischer

11:09 PM

@hpekristiansen well it is as it is. Such pathes have a direction. If you don't want it, you will have to draw e.g. the rectangle the other way round: \fill[red] (0,0) circle (1) (0,0)--(2,0) --(2,2)--(0,2)--cycle;

hpekristiansen

@UlrikeFischer: I know about the direction of the paths when the "even odd rule" is applied (medium.com/@SciWriterDave/fill-rules-in-tikz-511cecface99), but I thought that without it, it should always be the union of the shapes!?

I wonder - is there anyway to change the draw direction of a circle/ellipse?

Ulrike Fischer

@hpekristiansen I didn't check which rule is the default. But it is quite obvious that the circle has a different direction than the rectangle, and so you get a different result.

Money Oriented Programmer

11:24 PM

4

hpekristiansen

@UlrikeFischer: I just read relevant part of the manual, and it turns out that it is not like I thought the "even odd rule" but the default "nonzero rule" that gives the fill pattern. I think I understand most now - except if it possible to change direction of circles/ellipses for use with fill rules.

Phelype Oleinik

11:48 PM

@UlrikeFischer @MarcelKrüger Renderer=HarfBuzz is not supposed to work in \setmathfont, right?

Ulrike Fischer

@PhelypeOleinik no.

Phelype Oleinik

@UlrikeFischer Ah, okay. Thanks

@UlrikeFischer Adding it makes some truly halloween-esque math typesetting :-)

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