# How can I use q.uiver.app output in math.se?

I made this annotated expression using q.uiver.app and would like to know how I can embed it in a math.se post.

q.uiver.app gives me the following LaTeX and also mentions I should include \usepackage{quiver} in the preamble. How do I do this?

% https://q.uiver.app/?q=WzAsMTIsWzEsMCwiXFxsYW1iZGEgeC4iXSxbMiwwLCJcXGxhbWJkYSB5LiJdLFszLDAsIngiXSxbNCwwLCJ5Il0sWzAsMCwiKCJdLFs1LDAsIikiXSxbNiwwLCIoIl0sWzcsMCwiXFxsYW1iZGEgeC4iXSxbOCwwLCJcXGxhbWJkYSB5LiJdLFs5LDAsIngiXSxbMTAsMCwieSJdLFsxMSwwLCIpIl0sWzAsMiwiIiwwLHsiY3VydmUiOi01fV0sWzEsMywiIiwwLHsiY3VydmUiOjV9XSxbNyw5LCIiLDAseyJjdXJ2ZSI6LTV9XSxbOCwxMCwiIiwwLHsiY3VydmUiOjV9XV0=
$\begin{tikzcd} {(} & {\lambda x.} & {\lambda y.} & x & y & {)} & {(} & {\lambda x.} & {\lambda y.} & x & y & {)} \arrow[curve={height=-30pt}, from=1-2, to=1-4] \arrow[curve={height=30pt}, from=1-3, to=1-5] \arrow[curve={height=-30pt}, from=1-8, to=1-10] \arrow[curve={height=30pt}, from=1-9, to=1-11] \end{tikzcd}$


q.uiver.app also gives another paste:

% *** quiver ***
% A package for drawing commutative diagrams exported from https://q.uiver.app.
%
% This package is currently a wrapper around the tikz-cd package, importing necessary TikZ
% libraries, and defining a new TikZ style for curves of a fixed height.
%
% Version: 1.2.1
% Authors:
% - varkor (https://github.com/varkor)
% - AndréC (https://tex.stackexchange.com/users/138900/andr%C3%A9c)

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{quiver}[2021/01/11 quiver]

% tikz-cd is necessary to draw commutative diagrams.
\RequirePackage{tikz-cd}
% amssymb is necessary for \lrcorner and \ulcorner.
\RequirePackage{amssymb}
% calc is necessary to draw curved arrows.
\usetikzlibrary{calc}
% pathmorphing is necessary to draw squiggly arrows.
\usetikzlibrary{decorations.pathmorphing}

% A TikZ style for curved arrows of a fixed height, due to AndréC.
\tikzset{curve/.style={settings={#1},to path={(\tikztostart)
.. controls ($$(\tikztostart)!\pv{pos}!(\tikztotarget)!\pv{height}!270:(\tikztotarget)$$)
and ($$(\tikztostart)!1-\pv{pos}!(\tikztotarget)!\pv{height}!270:(\tikztotarget)$$)
.. (\tikztotarget)\tikztonodes}},
settings/.code={\tikzset{quiver/.cd,#1}
\def\pv##1{\pgfkeysvalueof{/tikz/quiver/##1}}},
quiver/.cd,pos/.initial=0.35,height/.initial=0}

\tikzset{tail reversed/.code={\pgfsetarrowsstart{tikzcd to}}}
\tikzset{2tail/.code={\pgfsetarrowsstart{Implies[reversed]}}}
\tikzset{2tail reversed/.code={\pgfsetarrowsstart{Implies}}}
% TikZ arrow styles.
\tikzset{no body/.style={/tikz/dash pattern=on 0 off 1mm}}

\endinput
$$$$
`
• You can't. Embed an image instead. Or use amscd. Dec 3 '21 at 21:06
• Can you link to asymptote? Dec 3 '21 at 21:07
• docs.mathjax.org/en/latest/input/tex/extensions/amscd.html Dec 3 '21 at 21:07
• Thanks. do you know if there's a gui? Dec 3 '21 at 21:08
• You can technically use the Ask Question button as a GUI. Dec 3 '21 at 21:13