6.3.3 Can you answer these questions?

6.3.3.1 \mathbb symbol in gnuplot

https://tex.stackexchange.com/landing/r/digest?cta=question&id=525007

I'd like to use a $\mathbb{C}$ symbol in one of the axes in enhanced postscript in gnuplot. 
This link has a list of latex symbols that can be used in gnuplot, but it doesn't include mathbb. Is there  ... 
[gnuplot]
 

asked by V-Red https://tex.stackexchange.com/landing/r/digest?cta=user&id=140108 1 vote

6.3.3.2 Footnotes on wrong page if framed environment spans two pages

https://tex.stackexchange.com/landing/r/digest?cta=question&id=524891

The footnotes in the following example should show on page 1, but they show on page two. What can I do? 
\documentclass[]{scrartcl} 
\usepackage{lipsum} 
\usepackage{framed} 
\begin{document} 
... 
[xetex] [footnotes] [framed]
 

asked by user2496550 https://tex.stackexchange.com/landing/r/digest?cta=user&id=205204 1 vote

6.3.3.3 Arrows showing Extent of multirow

https://tex.stackexchange.com/landing/r/digest?cta=question&id=524919

I am creating a table with different multirow heights.  I would like arrows that extend above/below the text to show the extent to which the multirow applies.  A naive example is below with the  ... 
[tables] [multirow]
 

asked by ZaydH https://tex.stackexchange.com/landing/r/digest?cta=user&id=153291 1 vote