7.24.1 Top new questions this week

7.24.1.1 how to use metapost newinternal variable

https://tex.stackexchange.com/landing/r/digest?cta=question&id=594116

I am trying to convert the statement 
drawarrow (0,0)--(100,100) dashed evenly withcolor green; 
to 
newinternal string varA ; 
varA := "dashed evenly withcolor green" ; 
drawarrow (0,0)--(100,... 
[metapost]
 

asked by user1389406 https://tex.stackexchange.com/landing/r/digest?cta=user&id=229561 6 votes

answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 6 votes

7.24.1.2 If Statements in Plain TeX

https://tex.stackexchange.com/landing/r/digest?cta=question&id=594385

In plain TeX, the following code: 
\def\ver{a} 
\if\ver{a}{yes}\else{no}\fi 
\ifx\ver{a}{yes}\else{no}\fi 
returns 
no 
no 
Is there some variant of "if" and "ifx" that will return ... 
[conditionals]
 

asked by WillO https://tex.stackexchange.com/landing/r/digest?cta=user&id=71502 6 votes

answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 14 votes

7.24.1.3 Make rainbow-coloured bullets to show points

https://tex.stackexchange.com/landing/r/digest?cta=question&id=594231

Here is my code: 
\documentclass{article} 
\usepackage[utf8]{inputenc} 
\usepackage{tikz,tikz-3dplot} 
\begin{document} 
\begin{tikzpicture}[thick] 
\draw[lightgray, dotted, xstep=pi/6, ystep=1] (0,0) ... 
[tikz-pgf] [color]
 

asked by Sat https://tex.stackexchange.com/landing/r/digest?cta=user&id=197689 6 votes

answered by Marijn https://tex.stackexchange.com/landing/r/digest?cta=user&id=89417 15 votes

7.24.1.4 Add a label to the top left corner of tikz plot?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=594624

I am starting with the "pgfplots" package to make "tikzpicture". I have two problems. 
I would like to add a label (A) to the top left corner of tikz plot, like this figure : 
I ... 
[tikz-pgf] [pgfplots] [plot]
 

asked by Ph.D.Student https://tex.stackexchange.com/landing/r/digest?cta=user&id=157357 4 votes

answered by Markus G. https://tex.stackexchange.com/landing/r/digest?cta=user&id=118712 3 votes

7.24.1.5 How to vertically align cells using multirow and multicolumn?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=594571

first-time poster here. I've been beating my head against the wall for the past few hours trying to figure out how to display the table below the way I want it. I've gotten pretty close, but there are ... 
[tables] [vertical-alignment]
 

asked by david99 https://tex.stackexchange.com/landing/r/digest?cta=user&id=240750 4 votes

answered by Bernard https://tex.stackexchange.com/landing/r/digest?cta=user&id=38908 4 votes

7.24.1.6 How to tag both the align and individual equations within it?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=594439

I was trying to create tags for both the optimization problem and individual constraints within it. Below is an example. Is this possible in LaTex? 
\begin{align}\tag{P1} 
\begin{split} 
\max_{... 
[align] [labels] [tag]
                                                                                  

                                                                                  
 

asked by David Xiaoyu Xu https://tex.stackexchange.com/landing/r/digest?cta=user&id=89718 4 votes

answered by Bernard https://tex.stackexchange.com/landing/r/digest?cta=user&id=38908 3 votes

7.24.1.7 Plain TeX \loop \repeat tracing output is incorrect

https://tex.stackexchange.com/landing/r/digest?cta=question&id=594424

\tracingall=1 
\newcount\n \n=20 
\loop\the\n \advance\n by-1 \ifnum\n>0 \repeat 
\bye 
will get out like: 
*\loop #1\repeat ->\def \body {#1}\iterate 
#1<-\the \n \advance \n by-1 \ifnum \n >... 
[plain-tex]
 

asked by user5507 https://tex.stackexchange.com/landing/r/digest?cta=user&id=5507 4 votes

answered by Phelype Oleinik https://tex.stackexchange.com/landing/r/digest?cta=user&id=134574 5 votes