10.6.1 Top new questions this week

10.6.1.1 Draw arrow on a curve
10.6.1.2 Creating a half-life plot
10.6.1.3 Hide part of a picture
10.6.1.4 Why do I get "unused global options warning" for options forwarded to a package except for the first option?
10.6.1.5 Attempting to understand a piece of code I found
10.6.1.6 How can I curve the line around a molecule in chemfig and add a floating line?
10.6.1.7 How to add a "qed square" at the end of a definition?
10.6.1.1 Draw arrow on a curve

https://tex.stackexchange.com/landing/r/digest?cta=question&id=706933

I would like to add arrow to a red curve as in the picture, this is my code 
\documentclass{article} 
\usepackage[margin=0cm,nohead]{geometry} 
\usepackage[active,tightpage]{preview} 
\usepackage{... 
[tikz-pgf] [tikz-arrows] [tikz-styles]
 
asked by Hariz Khaled https://tex.stackexchange.com/landing/r/digest?cta=user&id=293864 Score of 8
answered by Hasan Basri A~\207etin https://tex.stackexchange.com/landing/r/digest?cta=user&id=270674 Score of 9
10.6.1.2 Creating a half-life plot

https://tex.stackexchange.com/landing/r/digest?cta=question&id=706964

I'm trying to replicate the below plot in LaTeX, but I'm a bit lost in the coding. No math needed. It's just an exercise to create generic plots which resemble an exponential decay. I'd like to ... 
[tikz-pgf] [plot]
 
asked by Jessie https://tex.stackexchange.com/landing/r/digest?cta=user&id=219471 Score of 7
answered by Tom https://tex.stackexchange.com/landing/r/digest?cta=user&id=267375 Score of 8
10.6.1.3 Hide part of a picture

https://tex.stackexchange.com/landing/r/digest?cta=question&id=707045

I have this code (adapted from pgfplot: Fill between while including decoration function): 
%https://tex.stackexchange.com/questions/671424/pgfplot-fill-between-while-including-decoration-function 
\... 
[tikz-pgf] [pgfplots]
 
asked by Raffaele Santoro https://tex.stackexchange.com/landing/r/digest?cta=user&id=24644 Score of 7
answered by Jasper Habicht https://tex.stackexchange.com/landing/r/digest?cta=user&id=47927 Score of 7
10.6.1.4 Why do I get "unused global options warning" for options forwarded to a package except for the first option?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=706935

I am working on a custom package for my macros and shortcuts, and a custom class for my preferred style of the document. I am using DeclareKeys to define key-value options in my package, and then my ... 
[warnings] [package-writing] [documentclass-writing] [latex-base] [bugs]
 
asked by Shai Avr https://tex.stackexchange.com/landing/r/digest?cta=user&id=274542 Score of 7
answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 6
10.6.1.5 Attempting to understand a piece of code I found

https://tex.stackexchange.com/landing/r/digest?cta=question&id=707243

On this thread, I found a piece of code that I found really interesting and useful, but I have no idea how it works:https://tex.stackexchange.com/a/584979/261033 
Here's the code in question, for ... 
[macros] [primitives]
 
asked by Tsskyx https://tex.stackexchange.com/landing/r/digest?cta=user&id=261033 Score of 6
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 9
10.6.1.6 How can I curve the line around a molecule in chemfig and add a floating line?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=707239

So I want to make my chemical formulars in TikZ and I have this right now: 
My problem is that I want to curve the yellow line below the molecule to make the text more visible and to not cut the ... 
[tikz-pgf] [chemfig]
 
asked by SkillerRaptor https://tex.stackexchange.com/landing/r/digest?cta=user&id=312575 Score of 5
answered by MS-SPO https://tex.stackexchange.com/landing/r/digest?cta=user&id=245790 Score of 3
10.6.1.7 How to add a "qed square" at the end of a definition?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=707146

I'm using the acmart documentclass for a conference paper submission. I've provided a simple example (code below) which currently renders to the following output: 
Questions: 
How can I change the &... 
[theorems] [acm] [newtheorem] [acmart]
 
asked by 0xbadf00d https://tex.stackexchange.com/landing/r/digest?cta=user&id=181897 Score of 5
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 6