8.50.1 Top new questions this week

8.50.1.1 Force LaTeX to ignore unknown unicode characters
8.50.1.2 Within a macro, what's the most convenient way to force the compile to fail?
8.50.1.3 Error while compiling previously working code
8.50.1.4 Use \pgfmathresult in siunitx
8.50.1.5 Vertical alignment in a tree
8.50.1.6 How can I store and retrieve data for fixed layouts?
8.50.1.7 Why are these two matrices not the same height
8.50.1.1 Force LaTeX to ignore unknown unicode characters

https://tex.stackexchange.com/landing/r/digest?cta=question&id=652214

I'm using LaTeX for PDF generation programmatically. I know that I can \DeclareUnicodeCharacter but that works when you have one file. I'm trying to generate PDFs from the content in the database that ... 
[pdftex] [unicode] [utf8]
 
asked by Levara https://tex.stackexchange.com/landing/r/digest?cta=user&id=41953 Score of 9
answered by Ulrike Fischer https://tex.stackexchange.com/landing/r/digest?cta=user&id=2388 Score of 16
8.50.1.2 Within a macro, what's the most convenient way to force the compile to fail?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=651874

In a macro containing some conditions searching for existing macros that match a pattern, I have a combination of conditions that should be impossible. If the user mistakenly provides parameters that ... 
[macros]
 
asked by scorchgeek https://tex.stackexchange.com/landing/r/digest?cta=user&id=23090 Score of 9
answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 10
8.50.1.3 Error while compiling previously working code

https://tex.stackexchange.com/landing/r/digest?cta=question&id=651918

I'm trying to compile the exact same code suggested in the answer to How to Label and Caption TikzpictureS inside a tabular environment: 
\documentclass{article} 
\usepackage{tikz} 
\usetikzlibrary{calc} 
... 
[tikz-pgf] [errors] [captions]
 
asked by Ninoett https://tex.stackexchange.com/landing/r/digest?cta=user&id=253514 Score of 6
answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 7
8.50.1.4 Use \pgfmathresult in siunitx

https://tex.stackexchange.com/landing/r/digest?cta=question&id=651836

I try to do some calculation and then want to use the result in a siunitx qty. 
However, this fails and I don't know why. 
\documentclass{article} 
\usepackage{pgfplots, siunitx} 
\newcommand{\scale}[1]{\... 
[tikz-pgf] [pgfmath]
 
asked by Manuel Schmidt https://tex.stackexchange.com/landing/r/digest?cta=user&id=54364 Score of 6
answered by Joseph Wright https://tex.stackexchange.com/landing/r/digest?cta=user&id=73 Score of 11
8.50.1.5 Vertical alignment in a tree

https://tex.stackexchange.com/landing/r/digest?cta=question&id=652003

I've used base=bottom and base=top to have the text in a child node vertically aligned. However, I don't have the desired output. I would like to have "You can" in front of the edge, not &... 
[tikz-pgf] [tikz-trees] [forest]
 
asked by JJSilva https://tex.stackexchange.com/landing/r/digest?cta=user&id=273526 Score of 5
answered by Jasper Habicht https://tex.stackexchange.com/landing/r/digest?cta=user&id=47927 Score of 6
8.50.1.6 How can I store and retrieve data for fixed layouts?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=652205

My question today is about a suitable way to store data when I want to create a fixed design. So imagine I have a given layout in a TikZ drawing, where I want to have dynamic text. However the user ... 
[tikz-pgf] [data-structures]
 
asked by TobiBS https://tex.stackexchange.com/landing/r/digest?cta=user&id=156791 Score of 4
answered by Jasper Habicht https://tex.stackexchange.com/landing/r/digest?cta=user&id=47927 Score of 7
8.50.1.7 Why are these two matrices not the same height

https://tex.stackexchange.com/landing/r/digest?cta=question&id=652244

code 1 with ctex: 
\documentclass{article} 
\usepackage{ctex} 
\usepackage{amsmath} 
\begin{document} 
\begin{equation} 
A= \begin{bmatrix} 
x 
\end{bmatrix} 
\end{equation} 
\end{document} 
code ... 
[amsmath] [matrices] [ctex]
 
asked by Park https://tex.stackexchange.com/landing/r/digest?cta=user&id=270941 Score of 4
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 5