1.15.1 Top new questions this week

1.15.1.1 TikZ a^\200\224 involute of a circle
1.15.1.2 etex package still seems to be necessary in LaTeX2e 2015/10/01?
1.15.1.3 What is the local height of a capital letter?
1.15.1.4 Using crop package with XeLaTeX
1.15.1.5 "Incompatible list can't be unboxed" with memoir class and many box registers
1.15.1.6 Problem using calligra font with lettrine
1.15.1.7 Tightly fit a circle around points
1.15.1.1 TikZ a^\200\224 involute of a circle

http://tex.stackexchange.com/questions/274629/tikz-involute-of-a-circle

%%%%%%%%%%%%%%%%%%%%% 
\cprotect\subsubsection{\verb|I need to combine an involute|} 
\url{https://en.wikipedia.org/wiki/Involute} 
 
\begin{TEXTWinline} 
I need something like this: 
...
 

- asked by GeMir (19 votes), answered by Jake (16 votes)

1.15.1.2 etex package still seems to be necessary in LaTeX2e 2015/10/01?

http://tex.stackexchange.com/questions/275042/etex-package-still-seems-to-be-necessary-in-latex2e-2015-10-01

I've experienced this problem after upgrading to TeX Live 2015 and getting newer versions of all my packages. (Presumably some of those package updates are to blame.) 
MVE: 
\documentclass{scrartcl} 
...
 

- asked by Lightness Races in Orbit (14 votes), answered by Joseph Wright (13 votes)

1.15.1.3 What is the local height of a capital letter?

http://tex.stackexchange.com/questions/275374/what-is-the-local-height-of-a-capital-letter

How can I get a length, which reflects the hight of a (flat) capital letter? 
While \em gives me a width, \ex refers to a lowercase letter and \f@size refers to the overall fontsize including the  ...
 

- asked by ManuelAtWork (12 votes), answered by egreg (12 votes)

1.15.1.4 Using crop package with XeLaTeX

http://tex.stackexchange.com/questions/275075/using-crop-package-with-xelatex

When using the crop package with XeLaTeX the cropping of the first page doesna^\200\231t work. While the following document compiles fine with PDFLaTeX the result with XeLaTeX is this: 
As you can see the  ...
 

- asked by Tobi (12 votes), answered by Akira Kakuto (8 votes)

1.15.1.5 "Incompatible list can't be unboxed" with memoir class and many box registers

http://tex.stackexchange.com/questions/275099/incompatible-list-cant-be-unboxed-with-memoir-class-and-many-box-registers

Consider the following MWE: 
\documentclass{memoir} 
%% Create 123 box registers 
\newcount\X 
\X=1 
\loop 
\expandafter\newbox\csname mybox\the\X\endcsname 
\advance \X by 1 
\ifnum \X<124 
\repeat 
%%  ...
 

- asked by grizzilus (10 votes), answered by David Carlisle (8 votes)

1.15.1.6 Problem using calligra font with lettrine

http://tex.stackexchange.com/questions/275077/problem-using-calligra-font-with-lettrine

I'd like to use the calligra font with lettrine, but lettrine seems to cut off a part of the letter W. 
\documentclass[11pt]{book} 
\usepackage[utf8]{inputenc} 
\usepackage{lettrine} 
...
 
- asked by L.A. Rabida 10votes
1.15.1.7 Tightly fit a circle around points

http://tex.stackexchange.com/questions/275051/tightly-fit-a-circle-around-points

When using \node[circle, fit=(A) (B) (C)], the resulting circle is too big and doesn't touch the corners of the C node: 
\documentclass{article} 
\usepackage{tikz} 
\usetikzlibrary{fit} 
\begin{document} 
...
 

- asked by Georges DupA~(c)ron (9 votes), answered by Gonzalo Medina (6 votes)