{calculations} is about calculations in (La)TeX documents. A popular package is calc although may other also exist (fp, pgf, and LaTeX3 packages).

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How to do math on overlay arguments using pgfkeys (handle numbers and ranges)

Context I'm trying to do some basic operations on arguments on pgfkeys, and got stuck while trying to do simple arithmetic on them. Thankfully, egreg gave a nice solution for handling the arithmetic ...
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Insert negative of \widthof into \hspace without defining a newlength

Following MWE does not work: \documentclass{article} \usepackage{calc} \newlength{\charwidth} \setlength{\charwidth}{\widthof{$-$}} \begin{document} \centering $\infty$ \centering ...
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Command-scopes in a tabular-environment

I'm trying to use a command which aggregates some values. When using it with normal text, it is properly working but if I call the command in a table it seems that there is a problem with scopes or ...
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116 views

Software/Programm: latex-based math trainer

I need some help, because I searched the internet for quite a long time, but I wasn't successfull in getting a solution: I'm looking for a program/software, which helps me to practice math, which is ...