6.64.1 Top new questions this week

6.64.1.1 Automated sub- and superscripts
6.64.1.2 Is it bad practice to replace a^ -1  with a user-defined command?
6.64.1.3 How to color only the coefficients of a system of equations?
6.64.1.4 Nested \newcommand and \renewcommand
6.64.1.5 How to Draw a Rose in Latex
6.64.1.6 How to automatically use typewriter font in arrays?
6.64.1.7 Projectile motion: change an old code and make it more beautiful
6.64.1.1 Automated sub- and superscripts

https://tex.stackexchange.com/landing/r/digest?cta=question&id=570183

I would like to define a command that prints the first letter of its argument as superscript and the last two letters as subscribt. So if I type: 
\mynewcommand{abcde} 
it should do the same as 
\... 
[macros]
 
asked by M0M0 https://tex.stackexchange.com/landing/r/digest?cta=user&id=228576 8 votes
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 9 votes
6.64.1.2 Is it bad practice to replace a^ -1  with a user-defined command?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=570291

I've recently started doing my homework in LaTeX, so I'm still very new to this world. One of the things I don't very much like doing is typing out ^{-1} everytime I want the inverse of something, so ... 
[best-practices]
 
asked by V.Ch. https://tex.stackexchange.com/landing/r/digest?cta=user&id=159848 7 votes
answered by Gaussler https://tex.stackexchange.com/landing/r/digest?cta=user&id=19809 9 votes
6.64.1.3 How to color only the coefficients of a system of equations?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=570033

How to color only the coefficients of an aligned system of equation? I'm trying to do something like this: 
And so far, I've tried using these packages and defining these colors: 
\usepackage{amsmath,... 
[equations] [color] [align] [systeme]
 
asked by achaverra https://tex.stackexchange.com/landing/r/digest?cta=user&id=228497 7 votes
answered by Steven B. Segletes https://tex.stackexchange.com/landing/r/digest?cta=user&id=25858 6 votes
6.64.1.4 Nested \newcommand and \renewcommand

https://tex.stackexchange.com/landing/r/digest?cta=question&id=569926

Reading the class twentysecondcv.cls I noticed that there is a command defined in this way: 
\newcommand\skills[1]{ 
\renewcommand{\skills}{ 
\begin{tikzpicture} 
\foreach [count=\... 
[macros]
 
asked by Stefano https://tex.stackexchange.com/landing/r/digest?cta=user&id=28752 7 votes
answered by gernot https://tex.stackexchange.com/landing/r/digest?cta=user&id=110998 5 votes
6.64.1.5 How to Draw a Rose in Latex

https://tex.stackexchange.com/landing/r/digest?cta=question&id=570484

Is it possible to make a reasonable, but simple, facsimile Latex drawing of the following: 
The image comes from a previously posted question of this site: 
How to set opacity of background picture and ... 
[tikz-pgf] [graphics] [draw] [sketch]
 
asked by mlchristians https://tex.stackexchange.com/landing/r/digest?cta=user&id=192836 6 votes
answered by gernot https://tex.stackexchange.com/landing/r/digest?cta=user&id=110998 10 votes
6.64.1.6 How to automatically use typewriter font in arrays?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=570214

I'm trying to write a script on formal logic. The source code looks something like this: 
some text... 
\[ 
\begin{array}[]{c | c} 
p   &   (\lnot p) \\ \hline 
1   &   0 \\ 
0   &   1 \\ 
\end{... 
[fonts] [arrays] [typewriter]
 
asked by NilsK https://tex.stackexchange.com/landing/r/digest?cta=user&id=224035 6 votes
answered by Mico https://tex.stackexchange.com/landing/r/digest?cta=user&id=5001 9 votes
6.64.1.7 Projectile motion: change an old code and make it more beautiful

https://tex.stackexchange.com/landing/r/digest?cta=question&id=569976

Given this image, 
where a golf player throws a ball with a angle of 54.0A^Degree above horizontal and a speed va^\202\200=13.5 m/s. Looking this excellent old answer Sketching a graph mapping projectile motion using ... 
[tikz-pgf] [tikz-styles] [fun] [tikzlibrary]
 
asked by Sebastiano https://tex.stackexchange.com/landing/r/digest?cta=user&id=117876 6 votes
answered by muzimuzhi Z https://tex.stackexchange.com/landing/r/digest?cta=user&id=79060 5 votes