10.48.1 Top new questions this week

10.48.1.1 How can I get `f(2/3) = 20/9` and `f(4/3) = 16/9` of the function f(x) = 3 *x^3 - 9*x^2 + 8*x when I use pgf/tikz

https://tex.stackexchange.com/landing/r/digest?cta=question&id=722475

Based on this answer, I am trying to calc f(2/3) and f(4/3) of the function f(x) = 3 *x^3 - 9*x^2 + 8*x, my code 
\documentclass[12pt]{article} 
\usepackage{tikz} 
\usetikzlibrary{fpu} 
\usepackage{... 
[tikz-pgf]
 

asked by Thuy Nguyen https://tex.stackexchange.com/landing/r/digest?cta=user&id=180726 Score of 5

answered by matexmatics https://tex.stackexchange.com/landing/r/digest?cta=user&id=290058 Score of 2

10.48.1.2 tikz diagram skier on a slope

https://tex.stackexchange.com/landing/r/digest?cta=question&id=722547

is it possible to reproduce this schema with tikzpicture ? 
This is what I tried : 
\documentclass{article} 
\usepackage{tikz}%,pgf} 
%\usepackage{pgfplots} 
%\usetikzlibrary{calc,angles} 
\usetikzlibrary{... 
[tikz-pgf]
 

asked by matheux https://tex.stackexchange.com/landing/r/digest?cta=user&id=322137 Score of 5

answered by samcarter_is_at_topanswers.xyz https://tex.stackexchange.com/landing/r/digest?cta=user&id=36296 Score of 12

10.48.1.3 Aligning equation at the \middle  of a \left ... \middle ... \right triple

https://tex.stackexchange.com/landing/r/digest?cta=question&id=722685

I'm typesetting a matrix inversion procedure by means of Gaussian elimination. This typically involves writing a big matrix with a bar in the middle, which separates the original matrix from the to-be ... 
[align] [matrices]
 

asked by NA~\[DiscretionaryHyphen]ckolas Alveshttps://tex.stackexchange.com/landing/r/digest?cta=user&id=144146 Score of 4

answered by Sergei Golovan https://tex.stackexchange.com/landing/r/digest?cta=user&id=121550 Score of 8

10.48.1.4 Command to disable all tcolorboxes without deleting / commenting out them in source code?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=722664

I'm writing a text including multiple tcolorboxes. Now I need a version of the PDF without these boxes. Is there a command to switch off / disable all tcolorboxes? Of course I can comment out every ... 
[tcolorbox]
 

asked by Keks Dose https://tex.stackexchange.com/landing/r/digest?cta=user&id=4736 Score of 4

answered by campa https://tex.stackexchange.com/landing/r/digest?cta=user&id=82917 Score of 5

10.48.1.5 conditional enumerate labels

https://tex.stackexchange.com/landing/r/digest?cta=question&id=722571

I am writing a math book. I have exercises that have questions AND subquestions (for example 1 then 1.a, 1.b, 2 then 2.a, 2.b, 2.c etc.). I also have exercises that have one questions, without ... 
[numbering] [enumerate] [conditionals] [nesting]
 

asked by stargazer45 https://tex.stackexchange.com/landing/r/digest?cta=user&id=147296 Score of 4

answered by Skillmon https://tex.stackexchange.com/landing/r/digest?cta=user&id=117050 Score of 5

10.48.1.6 adding signature to letter using moderncv package

https://tex.stackexchange.com/landing/r/digest?cta=question&id=722613

I'm writing a cover letter using the moderncv package and want to include a signature after the name sign off. E.g. 
Yours sincerely, 
signature.png 
Myname 
Attached is my MWE. 
% 
\documentclass[12pt,... 
[moderncv] [cv] [letters]
 

asked by GregoryHouse https://tex.stackexchange.com/landing/r/digest?cta=user&id=298871 Score of 4

answered by Werner https://tex.stackexchange.com/landing/r/digest?cta=user&id=5764 Score of 4

10.48.1.7 Expand \hbox to the width of parent \vbox

https://tex.stackexchange.com/landing/r/digest?cta=question&id=722525

I have two \hboxes, one above another, inside \vbox: 
\documentclass{article} 
\begin{document} 
Some\vbox{\hbox{longer text above}\hbox{shorter text}}and some more text. 
\end{document} 
Which ... 
[boxes] [width] [fill]
 

asked by Filip Ao\275 https://tex.stackexchange.com/landing/r/digest?cta=user&id=290439 Score of 4