TeX - LaTeX Asked on August 31, 2021
I’m having some small spacing glitches with this stack, and I’m wondering about the best way to do this:
documentclass[11pt,letterpaper,twoside]{book}
usepackage[T1]{fontenc}
usepackage{lmodern}
usepackage[total={6in,10in},left=1.5in,top=0.5in,includehead,includefoot]{geometry}
usepackage{microtype}
usepackage{amsmath}
usepackage{amsfonts}
usepackage{mathtools}
usepackage{tensor}
begin{document}
begin{equation}
A_{mu nu lambda} +
left[ : substack{
mu ; rightarrow ; lambda
nu ; rightarrow ; mu
lambda ; rightarrow ; nu
} : right] +
left[ : substack{
mathstrut smash{mu ; rightarrow ; nu}
mathstrut smash{nu ; rightarrow ; lambda}
mathstrut smash{lambda ; rightarrow ; mu}
} : right]
end{equation}
end{document}
Preview:
As you can see on the preview, the second part has variable vertical spacings (mostly because of the lambda symbol), which I find very ugly. I hacked it (last part) by smashing everything and added a phantom vertical space (using mathstrut
). But is there a better or simpler way of doing this? How can I get a better result?
I think you're abusing the substack
machinery by employing it in a situation it clearly wasn't meant to be used in.
I suggest you employ either a bmatrix
environment or a bsmallmatrix
environment; if you choose the latter, be sure to employ mathstrut
directives in all rows too.
documentclass[11pt,letterpaper,twoside]{book}
usepackage[T1]{fontenc}
usepackage{lmodern}
usepackage[total={6in,10in},
left=1.5in,top=0.5in,
includehead,includefoot]{geometry}
usepackage{microtype}
usepackage{amsmath}
usepackage{amsfonts}
usepackage{mathtools}% for 'bsmallmatrix' env.
usepackage{tensor}
begin{document}
begin{gather*}
%% Row 1: left[ substac{ ... } right]
A_{mu nu lambda} +
left[ : substack{
mu ; rightarrow ; lambda
nu ; rightarrow ; mu
lambda ; rightarrow ; nu
} : right] +
left[ : substack{
mathstrut smash{mu ; rightarrow ; nu}
mathstrut smash{nu ; rightarrow ; lambda}
mathstrut smash{lambda ; rightarrow ; mu}
} : right]
%% Row 2: bmatrix environment
A_{mu nu lambda} +
begin{bmatrix}
mu to lambda
nu to mu
lambda to nu
end{bmatrix} +
begin{bmatrix}
mu to nu
nu to lambda
lambda to mu
end{bmatrix}
%% Row 3: bsmallmatrix environment
A_{mu nu lambda} +
begin{bsmallmatrix}
mu to lambda mathstrut
nu to mu mathstrut
lambda to numathstrut
end{bsmallmatrix} +
begin{bsmallmatrix}
mu to nu mathstrut
nu to lambda mathstrut
lambda to mu mathstrut
end{bsmallmatrix}
end{gather*}
end{document}
Correct answer by Mico on August 31, 2021
You could use an array
where the entries are in scriptstyle
.
documentclass[11pt]{article}
usepackage{lmodern}
usepackage{mathtools}
usepackage{array}
begin{document}
[
renewcommand{arraystretch}{0.55}
A_{mu nu lambda} +
biggl[ begin{array}{@{,}>{scriptstyle}c@{,}}
mu ; rightarrow ; lambda
nu ; rightarrow ; mu
lambda ; rightarrow ; nu
end{array} biggr]
]
end{document}
Answered by Vincent on August 31, 2021
You can use an array
in scriptsize
.
documentclass[11pt,letterpaper,twoside]{book}
usepackage[T1]{fontenc}
usepackage{lmodern}
usepackage[total={6in,10in},left=1.5in,top=0.5in,includehead,includefoot]{geometry}
usepackage{microtype}
usepackage{amsmath}
usepackage{amsfonts}
usepackage{mathtools}
usepackage{tensor}
newenvironment{scriptarray}[2][c]
{%
mathord{}% just to ensure this is used in math
hboxbgroupscriptsize$begin{array}[#1]{#2}%
}
{%
end{array}$egroup
}
begin{document}
begin{equation}
A_{mu nu lambda} +
left[ begin{scriptarray}{@{}c@{}}
mu rightarrow lambda
nu rightarrow mu
lambda rightarrow nu
end{scriptarray} right]
end{equation}
end{document}
Answered by egreg on August 31, 2021
Get help from others!
Recent Questions
Recent Answers
© 2024 TransWikia.com. All rights reserved. Sites we Love: PCI Database, UKBizDB, Menu Kuliner, Sharing RPP