7.73.1 Top new questions this week

7.73.1.1 How can I make an \underbrace without a brace?
7.73.1.2 \csname does not work with #1?
7.73.1.3 Using \bigtriangledown as the nabla operator: accents
7.73.1.4 How to fill text with bands of colour in tikz and keep normal text positioning
7.73.1.5 Angles greater than 360 a deeper question
7.73.1.6 How to get the coordinates of the visual back end point of an arrow?
7.73.1.7 Is it possible to typeset over and underbraces in `NiceMatrix`?
7.73.1.1 How can I make an \underbrace without a brace?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=623508

I'm trying to write the line diagram of the glass electrodo to measure pH. I've got a working code: 
\documentclass{article} 
\usepackage{xcolor} 
\usepackage{amsmath} 
\usepackage[version=4]{mhchem} 
\... 
[mhchem] [underbrace] [overbrace]
 
asked by FFG https://tex.stackexchange.com/landing/r/digest?cta=user&id=257239 8 votes
answered by Mico https://tex.stackexchange.com/landing/r/digest?cta=user&id=5001 12 votes
7.73.1.2 \csname does not work with #1?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=623185

I'm trying to use \csname to execute a command whose name depends on a variable. If I use \csname mygametitle\tmp \endcsname it works, but if I use instead of \tmp the argument #1 it fails: 
\... 
[csname]
 
asked by tobiasBora https://tex.stackexchange.com/landing/r/digest?cta=user&id=116348 7 votes
answered by campa https://tex.stackexchange.com/landing/r/digest?cta=user&id=82917 12 votes
7.73.1.3 Using \bigtriangledown as the nabla operator: accents

https://tex.stackexchange.com/landing/r/digest?cta=question&id=623031

As a follow-up to the great answer about shifting $\bigtriangledown$ to align like the usual $\nabla$ symbol, I want to have a solution, which also works well with math accents, like $\widetilde\nabla$... 
[equations] [symbols] [accents] [stacking-symbols]
 
asked by AndrA~(c) Schlichting https://tex.stackexchange.com/landing/r/digest?cta=user&id=33855 7 votes
answered by campa https://tex.stackexchange.com/landing/r/digest?cta=user&id=82917 7 votes
7.73.1.4 How to fill text with bands of colour in tikz and keep normal text positioning

https://tex.stackexchange.com/landing/r/digest?cta=question&id=622920

I am trying to colour letters/words/strings with multiple bands of colour per string. It would look like the flag of Ireland/Russia/Germany is behind the text. I would like my final function to let me ... 
[tikz-pgf]
 
asked by The Real Dre https://tex.stackexchange.com/landing/r/digest?cta=user&id=179452 6 votes
answered by mais https://tex.stackexchange.com/landing/r/digest?cta=user&id=254551 7 votes
7.73.1.5 Angles greater than 360 a deeper question

https://tex.stackexchange.com/landing/r/digest?cta=question&id=623371

I've found this code in stack exchange from 2012 and I rather like the general gist of the idea, however, it doesn't seem to work the way I would like it to work. I've looked into various spiral codes ... 
[tikz-pgf]
 
asked by AdamB https://tex.stackexchange.com/landing/r/digest?cta=user&id=240732 6 votes
answered by Raffaele Santoro https://tex.stackexchange.com/landing/r/digest?cta=user&id=24644 8 votes
7.73.1.6 How to get the coordinates of the visual back end point of an arrow?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=623259

I tried to answer an interesting but underrated old question. 
To make my answer work also for sloped paths, I need the coordinates of the visual back end point of an arrow. 
From the TikZ manual: 
I ... 
[tikz-pgf]
 
asked by CarLaTeX https://tex.stackexchange.com/landing/r/digest?cta=user&id=101651 6 votes
answered by muzimuzhi Z https://tex.stackexchange.com/landing/r/digest?cta=user&id=79060 3 votes
7.73.1.7 Is it possible to typeset over and underbraces in `NiceMatrix`?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=623582

I am trying to draw matrices with overbraces and underbraces. This may be done with the assistance of node numbering and \tikzset to process a few options for the calligraphic braces. 
According to how ... 
[decorations] [nicematrix] [calligraphy]
 
asked by Al-Motasem Aldaoudeyeh https://tex.stackexchange.com/landing/r/digest?cta=user&id=136098 5 votes
answered by Zarko https://tex.stackexchange.com/landing/r/digest?cta=user&id=18189 5 votes