10.5.3 Can you answer these questions?

10.5.3.1 Is there a way to define a separate listings escape sequence?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=707143

MWE: 
\documentclass{article} 
\usepackage{listings} 
\usepackage{xcolor} 
\lstset{ 
basicstyle=\small\sffamily, 
frame=tb, 
columns=fullflexible, 
escapeinside={`}{`}, 
escapebegin={\color{darkgray}\... 
[listings] [delimiters]
 

asked by user41177 https://tex.stackexchange.com/landing/r/digest?cta=user&id=302100 Score of 1

10.5.3.2 Graphical representation of a function in a well-chosen orthonormal frame of reference

https://tex.stackexchange.com/landing/r/digest?cta=question&id=707139

I want to create this exact picture in latex but I do not manage to find the code to do so.... 
This is my attempt: 
\begin{tikzpicture} 
\begin{axis}\[ 
axis lines=middle, 
axis line style={-... 
[tikz-pgf] [graphics] [function]
                                                                                  

                                                                                  
 

asked by vitalmath https://tex.stackexchange.com/landing/r/digest?cta=user&id=312506 Score of 1

answered by Raffaele Santoro https://tex.stackexchange.com/landing/r/digest?cta=user&id=24644 Score of 0

10.5.3.3 l3build not working

https://tex.stackexchange.com/landing/r/digest?cta=question&id=706787

When I try to run l3build doc, I get: 
l3build doc 
/Library/TeX/texbin/l3build: line 1: --[[: command not found 
/Library/TeX/texbin/l3build: line 3: syntax error near unexpected token `(' 
/Library/TeX/... 
[l3build]
 

asked by Jay Lee https://tex.stackexchange.com/landing/r/digest?cta=user&id=97583 Score of 2