8.68.1 Top new questions this week

8.68.1.1 Why changing the catcode of : cause epsfbox to fail?
8.68.1.2 How to calculate numbers bigger than 16383 in tikz?
8.68.1.3 Exercise in computation with macros: expansion not working as expected
8.68.1.4 Bad spacing with newtx?
8.68.1.5 Recommended way to pass all command arguments as a list
8.68.1.6 latex3: Keep whitespace
8.68.1.7 LaTeX3 macro identification in TeXstudio
8.68.1.1 Why changing the catcode of : cause epsfbox to fail?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=661751

I have the following very simple TeX file: 
\input epsf 
\catcode`\:=\active\def:{\thinspace\string:} 
a: b 
\centerline{\epsfbox{test.1}} 
\bye 
with test.mp containing 
beginfig(1); 
draw (0,0) -- (100,... 
[plain-tex] [eps] [metapost]
 
asked by user989070 https://tex.stackexchange.com/landing/r/digest?cta=user&id=282907 Score of 10
answered by wipet https://tex.stackexchange.com/landing/r/digest?cta=user&id=51799 Score of 6
8.68.1.2 How to calculate numbers bigger than 16383 in tikz?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=662308

I was trying to output the positive integer powers of 2 starting from 2^10=1024. I was met with a Dimension too large error. When I force compiled, every number from 2^14=16384 was output as 16383. My ... 
[tikz-pgf] [calculations] [pgfmath]
 
asked by ded4943 https://tex.stackexchange.com/landing/r/digest?cta=user&id=283205 Score of 9
answered by Skillmon https://tex.stackexchange.com/landing/r/digest?cta=user&id=117050 Score of 8
8.68.1.3 Exercise in computation with macros: expansion not working as expected

https://tex.stackexchange.com/landing/r/digest?cta=question&id=661892

I'm studying macros and, as an exercise, I wanted to compute the successor of a number, represented as text, in binary, little endian (lsb first). 
After big effort I devised this: 
\def\finish#1\relax{#... 
[macros] [expansion]
 
asked by user9137 https://tex.stackexchange.com/landing/r/digest?cta=user&id=13745 Score of 9
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 7
8.68.1.4 Bad spacing with newtx?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=661768

I have a problem with spacing. I think the problem comes from the package newtx. 
Here is a MWE: 
\documentclass{article} 
\usepackage[utf8]{inputenc} 
\usepackage[T1]{fontenc} 
\usepackage{newtxtext} 
\... 
[spacing] [newtx]
 
asked by Didier https://tex.stackexchange.com/landing/r/digest?cta=user&id=249670 Score of 7
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 6
8.68.1.5 Recommended way to pass all command arguments as a list

https://tex.stackexchange.com/landing/r/digest?cta=question&id=662050

I have been going from thread to thread for a while and I still cannot wrap my head around my problem. 
I want to do something that I thought would be basic; declare an "inner product" ... 
[macros]
 
asked by Aubergine https://tex.stackexchange.com/landing/r/digest?cta=user&id=221346 Score of 6
answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 6
8.68.1.6 latex3: Keep whitespace

https://tex.stackexchange.com/landing/r/digest?cta=question&id=662227

Regularly, I much appreciate that within latex3/expl3 whitespace is ignored. However, there are situations in which I would prefer to temporarily disable this behavior. 
One example of this is the ... 
[expl3] [latex3]
 
asked by Raven https://tex.stackexchange.com/landing/r/digest?cta=user&id=128658 Score of 5
answered by Joseph Wright https://tex.stackexchange.com/landing/r/digest?cta=user&id=73 Score of 7
8.68.1.7 LaTeX3 macro identification in TeXstudio

https://tex.stackexchange.com/landing/r/digest?cta=question&id=662123

The LaTeX3 syntax is not recognized by TeXstudio, and I'm looking for ways to solve it. 
The problem comes from (IMHO) the underscores being taken as "separators"... 
Here is an example: 
The ... 
[texstudio] [expl3] [syntax-highlighting]
 
asked by 3isenHeim https://tex.stackexchange.com/landing/r/digest?cta=user&id=28926 Score of 5