8.47.1 Top new questions this week

8.47.1.1 Symbol for difficulty?
8.47.1.2 How can I write this symbol resembling a little flame in latex?
8.47.1.3 Problem with indices in the Polish language
8.47.1.4 What is the LaTeX code for the symbol denoting a collection of nonempty sets that forms a partition of a set?
8.47.1.5 not showing bengali equation as output in latex
8.47.1.6 Make Half/Half shaded nodes in TikZ
8.47.1.7 Get height of the current box
8.47.1.1 Symbol for difficulty?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=650709

I am looking for symbols of difficulty (exercices for my students). 
For instance, a face with a question mark above his head, ... 
I would put one symbol for an easy exercice, two for a more difficult ... 
[symbols]
 
asked by Didier https://tex.stackexchange.com/landing/r/digest?cta=user&id=249670 Score of 10
answered by Fran https://tex.stackexchange.com/landing/r/digest?cta=user&id=11604 Score of 23
8.47.1.2 How can I write this symbol resembling a little flame in latex?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=650730

I have encountered this symbol resembling a little flame (inside the norm inside the expectation) in a paper, does anyone know how to write it in latex? Here is the link to the paper: 
https://... 
[symbols]
 
asked by JRT https://tex.stackexchange.com/landing/r/digest?cta=user&id=274326 Score of 8
answered by Vincent https://tex.stackexchange.com/landing/r/digest?cta=user&id=201628 Score of 19
8.47.1.3 Problem with indices in the Polish language

https://tex.stackexchange.com/landing/r/digest?cta=question&id=650849

Although I read some postings about indices on the forum, I still have trouble with making an index in Polish. I want to have bold letters before a group connected with a single letter (like in the ... 
[luatex] [indexing] [utf8] [polish]
 
asked by constantin_d https://tex.stackexchange.com/landing/r/digest?cta=user&id=272261 Score of 5
answered by Javier Bezos https://tex.stackexchange.com/landing/r/digest?cta=user&id=5735 Score of 4
8.47.1.4 What is the LaTeX code for the symbol denoting a collection of nonempty sets that forms a partition of a set?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=650811

Page 1161 of "Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest and Clifford Stein. Introduction to Algorithms, 3rd Edition. MIT Press, 2009" says 
What is the LaTeX code for the ... 
[math-fonts]
 
asked by JJJohn https://tex.stackexchange.com/landing/r/digest?cta=user&id=192089 Score of 5
answered by Mico https://tex.stackexchange.com/landing/r/digest?cta=user&id=5001 Score of 8
8.47.1.5 not showing bengali equation as output in latex

https://tex.stackexchange.com/landing/r/digest?cta=question&id=650765

\documentclass[a4paper,12pt]{book} 
\usepackage[inner=1.5cm, outer=1.5cm, top=1.5cm, bottom=1.5cm]{geometry} 
\tracinglostchars=2 
\usepackage[bidi=basic,layout=sectioning]{babel} 
\usepackage{fontspec} 
\... 
[equations] [babel]
 
asked by haru https://tex.stackexchange.com/landing/r/digest?cta=user&id=274340 Score of 5
answered by Ulrike Fischer https://tex.stackexchange.com/landing/r/digest?cta=user&id=2388 Score of 8
8.47.1.6 Make Half/Half shaded nodes in TikZ

https://tex.stackexchange.com/landing/r/digest?cta=question&id=651252

This question is very similar to this question. I additionally need to be able to colour the second half of the node in any other color, preferrably via another pgf-Argument. I tried different ... 
[tikz-pgf]
 
asked by Herbrert https://tex.stackexchange.com/landing/r/digest?cta=user&id=184307 Score of 4
answered by Qrrbrbirlbel https://tex.stackexchange.com/landing/r/digest?cta=user&id=16595 Score of 4
8.47.1.7 Get height of the current box

https://tex.stackexchange.com/landing/r/digest?cta=question&id=651191

I'm curious how does \vrule determine the height of the current box? 
\documentclass{article} 
\usepackage{amsmath} 
\[ 
\Big( 
~ 
\vrule width.7pt 
~ 
\Big) 
\] 
this image was created by ... 
[tikz-pgf] [spacing] [boxes] [rules]
 
asked by antshar https://tex.stackexchange.com/landing/r/digest?cta=user&id=213149 Score of 4