7.81.2 Greatest hits from previous weeks

7.81.2.1 Nice scientific pictures show off

https://tex.stackexchange.com/landing/r/digest?cta=question&id=158668

Task 
Show off your best scientific illustration ! 
The main purpose of this question is to share beautiful scientific pictures, preferably with an educational aspect. 
Content 
Your post must ... 
[diagrams] [3d] [technical-drawing] [fun] [big-list]
 

asked by Thomas https://tex.stackexchange.com/landing/r/digest?cta=user&id=42660 553 votes

answered by Charles Staats https://tex.stackexchange.com/landing/r/digest?cta=user&id=484 330 votes

7.81.2.2 What are all the font styles I can use in math mode?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=58098

As can be seen in above picture, there are lots of fonts or font styles that can be used in math mode. 
What are all the fonts or font styles I can use in math mode, and which packages are required in ... 
[fonts] [math-mode] [big-list] [latin-modern] [computer-modern]
 

asked by doncherry https://tex.stackexchange.com/landing/r/digest?cta=user&id=4012 521 votes

answered by Christian https://tex.stackexchange.com/landing/r/digest?cta=user&id=13450 674 votes

7.81.2.3 Keeping tables/figures close to where they are mentioned

https://tex.stackexchange.com/landing/r/digest?cta=question&id=2275

Is there any package or a method to force LaTeX to keep floating environments like table and figure closer to where they are declared? 
[floats] [positioning]
 

asked by artimess https://tex.stackexchange.com/landing/r/digest?cta=user&id=833 371 votes

answered by Stefan Kottwitz https://tex.stackexchange.com/landing/r/digest?cta=user&id=213 368 votes

7.81.2.4 Is there a way to slightly shrink a table, including font size, to fit within the column boundaries?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=10863

I have a table that is just a little too wide for a 3.33" column. Is there a way to simply shrink the table a little to make it fit? I'm OK if the 10pt font becomes 9pt-something. Here is an example. 
... 
[tables] [scaling]
 

asked by Nathan Farrington https://tex.stackexchange.com/landing/r/digest?cta=user&id=3504 166 votes

answered by Martin Scharrer https://tex.stackexchange.com/landing/r/digest?cta=user&id=2975 244 votes

7.81.2.5 Math symbol question: Vertical bar for ''evaluated at ...''

https://tex.stackexchange.com/landing/r/digest?cta=question&id=40160

How do I insert the line "|" after the equation in LaTeX (see image below)? 
I'm using LyX so if you can point me to the symbol of that line is also OK. 
I don't know if this line has a proper name so ... 
[math-mode] [symbols] [lyx]
 

asked by rasgo https://tex.stackexchange.com/landing/r/digest?cta=user&id=10511 171 votes

7.81.2.6 What does the phrase "Underfull \hbox (badness 10000) in paragraph" actually mean?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=334246

What does the actual phrase above mean? 
[errors]
 

asked by Charles Boehm https://tex.stackexchange.com/landing/r/digest?cta=user&id=116447 68 votes

answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 63 votes

7.81.2.7 Why do the less than symbol (<) and the greater than symbol (>) appear wrong as upside down exclamation (A^\[DownExclamation]) or question mark (A^\[DownQuestion])?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=2369

When typing < or > in LaTeX and compiling with pdflatex, the less than and greater than symbols appear at upside down exclamation points. I'm not in math mode. 
[symbols] [punctuation] [font-encodings]
 

asked by biased_estimator https://tex.stackexchange.com/landing/r/digest?cta=user&id=996 292 votes

answered by Stefan Kottwitz https://tex.stackexchange.com/landing/r/digest?cta=user&id=213 260 votes