9.13.3 Can you answer these questions?

9.13.3.1 Package PAGELAYOUT, 'cannot access shell'

https://tex.stackexchange.com/landing/r/digest?cta=question&id=676331

While running the package-supplied *.tex samples for pagelayout.cls, I am getting error messages. That alone is odd, because I would expect those examples to be rock-solid. The errors claim that the ... 
[layout] [shell-escape]
 

asked by Birdman https://tex.stackexchange.com/landing/r/digest?cta=user&id=287274 Score of 1

9.13.3.2 How can I generate line plots like the this figure?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=676060

I am trying to draw the figure on the left using Tikz package. Does anyone has some template to share? many thanks, 
[floats] [tikz-arrows]
 

asked by Vincent https://tex.stackexchange.com/landing/r/digest?cta=user&id=70361 Score of 1

9.13.3.3 Latex Exam Package: change the mark position for long questions for \pointstorightmargin

https://tex.stackexchange.com/landing/r/digest?cta=question&id=676106

I am working on an exam papers and all is find except the position of the marks to long questions more than two lines. 
I use the \pointstorightmarin to place the marks in certain position. It is ok ... 
[packages] [exam]
 

asked by eaglezyj https://tex.stackexchange.com/landing/r/digest?cta=user&id=136634 Score of 1

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