Author Stefan Kottwitz
Nach einem kurzen Gespräch auf TeXnique.fr hat Patrick Bideault das coffeestains-Paket auf TikZ portiert. Das ursprünglich von Hanno Rein in 2009 entworfene Paket erfuhr damit eine Modernisierung und läuft einwandfrei mit pdfLaTeX, XeLaTeX, und LuaLaTeX auf TeX Live 2021. Damit… Continue Reading →
Gerade in Internet-Foren ist es üblich, Problem-Beispiele zu posten, und Antworten enthalten oft vollständige Lösungs-Codes. Mit TeXlive.net kann man nun Code mit einem einzigen Klick direkt auf der Webseite übersetzen. Das geht auch auf dem Tablet oder Mobiltelefon, wo auch… Continue Reading →
The following text is in German because it’s about the German language user group meeting 2021. Im vergangenen Jahr sind leider beide DANTE-Tagungen wegen der Pandemie ausgefallen. Dieses Jahr wird die Frühjahrstagung stattfinden, jedoch wegen der Kontaktbeschränkungen komplett online. Anmelden… Continue Reading →
Here I fill the space below the function z = x^2+y^2 to get a solid object. I did it by: Plotting the curves at the edges, for x=0 and y=0 Plotting the bottom edges Naming the paths above using name… Continue Reading →
The sine function is a well known periodic function. Choose an argument factor, which doesn’t divide the period well, and you can see a complicated path around the origin. This plot was originally made for my blog post on TikZ.de:… Continue Reading →
The sine function is a well known periodic function. Choose an argument factor, which doesn’t divide the period well, and add another sine function with a different factor, and you can see a complicated path around the origin. This plot… Continue Reading →
This is a picture of a Julia set, named after the French mathematician Gaston Julia. Computing requires a lot of iterations, that’s why we use Lua. The function for the set is z -> z^2 – 0.742 + 0.1i. The… Continue Reading →
The Mandelbrot consists of points whose boundary is a two-dimensional fractal shape. It is named after the mathematician Benoit Mandelbrot. It’s computed using a lot of iterations, that’s why we use Lua here for the calculation. The sampling is done… Continue Reading →
With pgfplots 1.10 and its fillbetween library we can fill the area between curves in a new convenient way: draw the first function and give it a name draw the second function and name it too add a fill between… Continue Reading →
We know for example informational or scientific posters seen at conferences or at walls in universities or institutes. They mostly have certain characteristics in common: They have a large size, such as A2, A1 or even A0. People may look… Continue Reading →
Functions with two arguments can be visualized in three-dimensional plots. Getting this on paper or into a PDF, is a bit more challenging. We need a projection, a view point, or angle, there’s a depth which means parts should be… Continue Reading →
A well-known classic field of mathematics is geometry. You may know Euclidean geometry from school, with constructions by compass and ruler. Math teachers may be very interested in drawing geometry constructions and explanations. Underlying constructions can help us with general… Continue Reading →
Using basic TikZ function it’s not too hard to create a line, add some ticks and date values and annotations. This example shows another colorful predesigned way using the timeline library. Until the timelime library becomes official part of TikZ… Continue Reading →
A mind map visualizes information or ideas. Usually, there’s a main concept in the center and major concepts branching outward from it. Smaller ideas start from the major concepts. So, a mind map can look like a spider web. Here,… Continue Reading →
A flowchart showing how we may choose a math environment. It shows using styles, placing nodes in a matrix, and drawing arrows using loops. Full explanation in Chapter 9, Creating Graphics: Constructing a flowchart. Edit and compile if you like:… Continue Reading →
A horizontal tree, growing to the right. I created a basic style for tree nodes, and derived styles for specific kinds of nodes. Full explanation in Chapter 9, Creating Graphics: Growing a tree. Edit and compile if you like: %… Continue Reading →
A bar chart can be used for comparing values. Here we create a horizontal bar chart. The pgfplots package provides an easy way. In this example, I reduced axis data to focus on the values. So I do not show… Continue Reading →
A simple tree with a style for all nodes. A tree is a very common type of hierarchical graph. Tree nodes have children. These are connected by edges and are usually displayed in rows when growing down or in columns… Continue Reading →
A flowchart showing a common TeX workflow, using the smartdiagram package. Full explanation in Chapter 9, Creating Graphics: Building smart diagrams Edit and compile if you like: % A flowchart of a TeX workflow % Author: Stefan Kottwitz % https://www.packtpub.com/hardware-and-creative/latex-cookbook… Continue Reading →
Now there are only a few days left until the TeX Users Group meeting 2020 starts. As it happens online with more than 220 registered participants world wide, following the schedule in some other time zone may be a challenge…. Continue Reading →
On LaTeX-Community.org, founded January 2007, many authors published articles about LaTeX and related tools. The article database has been changed from Joomla to a modern WordPress CMS, mainly because of security concerns. The site has been renamed to LaTeX.net. The… Continue Reading →
Auch auf Deutsch / in German: TeX.co In April I did a pretty big software update on goLaTeX.de, and added more features since then. What’s new? For example: The display is automatically adjusted, so it’s much better readable on smart… Continue Reading →
Im April hatte ich ein größeres Software-Update auf goLaTeX.de vorgenommen, und in der Folgezeit weitere Features eingebaut. Was ist neu? Zum Beispiel: Die Darstellung passt sich an Displaygröße an und das Forum ist auf Smartphones erheblich besser lesbar. (Vorher-Nacher-Vergleich) Grafik-Einbindung… Continue Reading →
Schönes Osterpräsent! TeX Live 2020 einschließlich MacTeX ist erschienen. Neu ist beispielsweise, dass der TeX Live Manager (tlmgr) nach Fehlschlag erneut versucht, ein Paket herunterzuladen, Konsistenzprüfung der lokalen Paketdatenbank (ls-R) durch tlmgr check texmfdbs, Versionsnummern in Paket-Dateinamen. Sonst einige Feinheiten… Continue Reading →
I’m on a carribbean cruise for three weeks and don’t have so much time as before for answering questions on LaTeX.org. Especially since I actually do work here, on improving the WiFi onboard the cruise ship. It would be great… Continue Reading →
Axel Kielhorn hat eine deutschsprachige Einführung in ConTeXt verfasst, wie er heute auf der Vereins-Mailingliste mitteilte. Auf 45 Seiten erklärt er die wesentlichen Grundlagen, also Gliederung (Kapitel, Abschnitte und feiner) Stichpunkt-Listen, Aufzählungen, beschreibende Listen Text-Formatierung, Schriften und Größen Querverweise und… Continue Reading →
Tl;dr: es gibt da ein paar Jobangebote. Nach meinem Mathestudium wollte ich ja erstmal in die Ferne und bin als IT Officer auf ein Kreuzfahrtschiff gestiegen. Leben und Arbeiten in der Besatzung mit der Technik war spannend und die Reisen… Continue Reading →
Testbericht zum Paket pst-poker.sty Seit 2008 fand man nur ein leicht fehlerhaftes Paket poker.sty des Autors Olaf Encke, der es auf seiner Privathomepage hochgeladen hatte. Nach langer Zeit einmal wieder über das Thema nachgedacht… Nun hat das weltbekannte LaTeX-Urgestein Herbert… Continue Reading →
DANTE, der Verein deutschsprachiger TeX-Anwender, fördert weiterhin TeX-Webseiten wie TeX-Internetforen und mehr. Installiert und betreut werden zwei Server von mir. Die finanzielle Unterstützung von DANTE deckt den kompletten Betrieb zweier Server ab, von Hardware-Miete und Gigabit-Internet-Anbindung bis hin zu Backup-Space… Continue Reading →
Today I browsed through unanswered questions on LaTeX.org. Perhaps you got an idea how to help a user? Some randomly chosen examples: Plot with months and years as x-axis (from today)The goal is to get a plot like this: ntheorem… Continue Reading →
Today I celebrate my 9000th post on LaTeX.org. I don’t have the patience to wait until it’s 10k. In 2008 I joined the forum, when it was maintained by Sven Wiegand, the creator of the TeXnicCenter editor and forum founder… Continue Reading →
Das “Comprehensive TeX Archive Network” (CTAN) ist das Rückgrat der TeX-Welt im Internet. Das Herz ist der einzelne dante.ctan.org-Server, dieser Server und insbesondere der Inhalt wird durch das CTAN-Team betreut. Sie stellen weit mehr als 5000 TeX-Pakete zum Installieren und… Continue Reading →
The backbone of the TeX world is the Comprehensive TeX Archive Network (CTAN). The single server dante.ctan.org is the core, this one and the content is maintained by the CTAN team. It provides more than 5000 TeX packages for installing… Continue Reading →
An intensive discussion is going on here: https://tex.meta.stackexchange.com. Let me summarize, what I read: TeX.SE got a new design There was a design discussion before, but no TeX user suggestion has been considered There are a lot of opinion and… Continue Reading →
I like the idea of local TeX communities, and of TeX support in native language. It provides people who don’t read and write English fluently with access to TeX and LaTeX. Also, feeling ok with English, I enjoy reading TeX… Continue Reading →
TeX Live 2018 was released on 28 April 2018. I waited some days until I did the update (and to write here) to see if there might be any issue regarding setup or function. A few points were posted on the TeX… Continue Reading →
LyX 2.3.0 has been released. I listed the quite a lot new features already here: LyX 2.3 release candidate with new features So I will be brief. There’s no Windows (binary) version yet, I guess it will come soon. There’s… Continue Reading →
The iX, magazine for professional IT in German language, started a tutorial about LaTeX. The current issue 1/2018 deals with it at an advanced level: Marei Peischl introduces LaTeX based on newest features. (German blog post: on TeXwelt.de) The first part starts with a new package, that even… Continue Reading →
As I wanted to write a post about benefits of joining the TeX Users Group, I did a routine check. So I found Greg’s post and Jim’s answer on tex.co/q/217685/213 – click the link to get the full view. I… Continue Reading →
The first public release candidate of LyX 2.3 is available with an amazing amount of new features, such as native biblatex support multiple bibliographies with biblatex native microtype support dynamic quotation marks subequations left aligned equations Inkscape figure template better… Continue Reading →
Norbert Preining announced the release of a new graphic user interface for TeX Live, the TeX Live Cockpit. The TL Cockpit works on top of the TeX Live Manager aka tlmgr provides an interface to TeX Live options gives a… Continue Reading →
I just noticed, that today there is a Back to School sale at Packt Publishing: each LaTeX ebook (and other ebooks) are available for just $10 today. You can also bundle two LaTeX books and a third book for $25 all-together…. Continue Reading →
Day 2 of the SHA hacker camp. Coffee, breakfast, Internet. For the latter, I pulled a long Ethernet cable extension reel to a “datenklo”. To be safe, somehow, I installed a Cisco ASA firewall for wired access, via a dedicated… Continue Reading →
Late this year, but I’m happy to have renewed my membership in the TeX Users Group. I became a member in 2011 as part of the institutional membership of StackExchange I suggested on meta. I had a joint membership (DANTE and… Continue Reading →
Just 5 days to go, then the hacker camp SHA2017 will start. The name stands for “Still Hacking Anyway”, and the camp belongs to a string of hacker camps that happen every 4 years. This year we will meet in… Continue Reading →
Do you know this delicious German pastry? (Photo by Guido Draheim). It’s called “ Spritzkuchen” or “Spritzring”. I thought of it when I was toying with TikZ and pgfplots. It’s similar to a twisted torus. Today I dealt with it… Continue Reading →
TeX Live 2017 has been published today. Note, we may need to wait a bit though, until the CTAN mirrors have replicated the software. Also, MacTeX 2017 is not yet ready for download, but it will follow very soon. Follow… Continue Reading →
(This article in German – auf Deutsch) At first I read it on LaTeX.org: there’s a Kickstarter project for creating a free and open source table editor for LaTeX. It’s written in JavaScript and can be web hosted. The goal of the project… Continue Reading →