Fix typst dimensions

.github/workflows/ci.yml

@@ -2,8 +2,6 @@ name: CI
 
 on:
   push:
-    branches:
-      - main
   pull_request:
   workflow_dispatch:
 
@@ -91,7 +89,7 @@ jobs:
           retention-days: 7
 
       - name: "Publish package (hash)"
-        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
+        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
         run: |
           PUBLISH_USER="${{ secrets.PUBLISH_USER }}" \
           PUBLISH_KEY="${{ secrets.PUBLISH_KEY }}" \
@@ -100,7 +98,7 @@ jobs:
             python tools/scripts/publish.py
 
       - name: "Publish package (latest)"
-        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
+        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
         run: |
           PUBLISH_USER="${{ secrets.PUBLISH_USER }}" \
           PUBLISH_KEY="${{ secrets.PUBLISH_KEY }}" \

.vscode/settings.json

@@ -1,5 +1,4 @@
 {
 	"latex-workshop.latex.recipe.default": "latexmk (xelatex)",
-	"tinymist.formatterPrintWidth": 80,
+	"tinymist.formatterPrintWidth": 80
-	"tinymist.typstExtraArgs": ["--package-path=./lib/typst"]
 }

LICENSE

@@ -0,0 +1,674 @@
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+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -0,0 +1,156 @@
+# ORMC Handouts
+
+This repository contains all the handouts I've written for the [ORMC](https://circles.math.ucla.edu/circles/). \
+You can find the latest PDFs [here](https://static.betalupi.com/ormc).
+
+**For my students:** Handouts will appear here a few days before class. Please don't look at them (or their solutions) beforehand, that spoils all the fun!
+
+**For everyone else:** If you are not affiliated with the ORMC, ask for permission before using these.
+
+
+
+## 📦 Contents
+
+Handouts are sorted by the class they're for:
+ - [`./Intermediate`](./Intermediate/): Grades 5 - 9
+ - [`./Advanced`](./Advanced): Grades 9 - 12
+
+Grade levels are estimates.
+
+
+
+## 🛠️ Building these Handouts
+
+Automatic builds are [here](https://static.betalupi.com/ormc), if you just want the PDFs.
+
+If you want to edit these files, you'll need to download a custom document class. \
+To compile one handout, do the following:
+ 1. Download the handout's directory (i.e, download the whole repo as a zip and extract the folder you want.)
+ 1. Download [`./resources/ormc_handout.cls`](./resources/ormc_handout.cls)
+ 2. Put this class in the same directory as the handout.
+ 3. Fix the include path at the top of the handout.
+
+	Usually, you'll need to replace
+
+	```latex
+	\documentclass[
+		...
+	]{../../../lib/tex/ormc_handout}
+	```
+
+	with
+
+	```latex
+	\documentclass[
+		...
+	]{ormc_handout}
+	```
+
+These documents should work with any LaTeX engine. \
+However, try changing your engine to LuaLaTeX if something breaks.
+
+
+
+
+---------------------------------------------------------------------------
+
+
+# 📜 Class Documentation
+
+The class `ormc_handout` is based on `article.cls`, and should work with most LaTeX packages. It has everything you need and nothing you don't; it looks pretty and it is optimized for greyscale printing.
+
+If you find something broken, please tell me so I may try to fix it.
+
+
+
+## 🎏 Arguments
+
+These are passed to `\documentclass`, as follows:
+```latex
+% Documentclass argument example
+\documentclass[
+	nosolutions,
+	shortwarning
+]{ormc_handout}
+```
+
+- `10pt`, `11pt`, `12pt`:\
+	Default: `10pt`. Sets font size.
+
+- `pagenumber`, `nopagenumber`:\
+	Default: `pagenumber`. Shows or hides page numbers.
+
+- `solutions`, `nosolutions`:\
+	Default: `solutions`\
+	If `nosolutions` is passed, `solution` and `instructornote` environments are hidden.
+
+- `showwarning`, `hidewarning`:\
+	Default: `showwarning`. Shows or hides instructor handout warning.
+
+- `shortwarning`, `longwarning`:\
+	Default: `longwarning`. Sets instructor handout warning type.
+
+- `multinumbering`, `singlenumbering`:\
+	Default: `multinumbering`\
+	How problems, theorems, etc should be numbered. If `mulitnumbering` is passed, problems, theorems, etc will be numbered independently. If `singlenumbering` is passed, one global counter will be used. (I think `singlenumering` is better, it makes the handout easier to navigate.)
+
+Use `geometry` to change page lengths. Letter paper is the default.
+
+
+
+
+## 🪖 Commands & More:
+`ormc_handout` automatically includes `tcolorbox`, `xcolor`, `tikz`, `amsmath`, `amssymb`. \
+It also includes a few other packages that are used internally and shouldn't have an effect on most workflows.
+
+
+
+### **Basics:**
+
+- `\say{text}`: Puts text in quotes, handling details like period spacing. Courtesy of `dirtytalk`.
+- `\tab`: Typewriter-style tabs every `1cm`. Courtesy of `tabto`.
+- `\maketitle`: Makes a title. This is never placed on a separate page.
+  - Set title data with the following commands:\
+	`\title{text}`, `\subtitle{text}`, `\uptitlel{text}`, `\uptitler{text}`\
+	`\uptitlel` and `\uptitler` are optional, but usually come together.
+- `\note[Type]{text}`: Makes a note.
+- `\hint{text}`: Shorthand for `\note[Hint]{text}`
+
+
+
+### **Sectioning:**
+
+The usual LaTeX title-customization techniques *WILL NOT WORK* with this class.\
+Don't even try to load `titlesec`.
+
+- `\section{title}<label>`: Creates a section with an optional label.\
+	You do not need to include the angle brackets.\
+	If you do, you can reference this section with `\ref{label}`.
+- `\definition{title}<label>`: Makes a definition. Works just like `\section`.
+- `\proposition{title}<label>`: Makes a proposition. Works just like `\section`.
+- `\theorem{title}<label>`: Makes a theorem. Works just like `\section`.
+- `\example{title}<label>`: Makes an example. Works just like `\section`.
+- `\problem{title}<label>`: Makes a problem. Works just like `\section`.
+- `\problempart{title}<label>`: Makes a problem part. Works just like `\section`.\
+	As the name implies, this command should only be used to make subparts of `\problems`.\
+	This command may be removed in the future.
+- `\generic{title}<label>`: Makes a generic section. Works just like `\section`.\
+	Avoid using this if you can. \
+	Generic sections have no counter, and are usually used to get text to look the same as a section title. \
+	This command may be removed in the future.
+
+
+
+### **Environments:**
+
+- `\begin{solution}`: A fancy `tcolorbox` for solutions to problems. \
+	This is hidden if the `nosolutions` flag is passed.
+- `\begin{instrutornote}`: A fancy `tcolorbox` for instructor notes. \
+	This is hidden if the `nosolutions` flag is passed.
+- `\begin{examplesolution}`: A fancy `tcolorbox` for sample solutions. \
+	This is never hidden.
+
+All the above environments break across pages and may be safely nested.
+
+Each also has a special command `\linehack`, which draws a line across the box.\
+Use `\linehack` instead of `tcolorbox` sections. `tcolorbox` only lets you have two, while `\linehack` gives you as many as you want.

authors.toml

@@ -1,3 +0,0 @@
-[authors."mark"]
-email = "mark@betalupi.com"
-webpage = "betalupi.com"

lib/typst/local/handout/0.1.0/typst.toml

@@ -1,6 +0,0 @@
-[package]
-name = "handout"
-version = "0.1.0"
-entrypoint = "handout.typ"
-authors = []
-license = "GPL"

src/Advanced/Tropical Polynomials/handout.typ

@@ -1,5 +1,3 @@
-/// Typst handout library, used for all documents in this repository.
-
 
 /// If false, hide instructor info.
 ///
@@ -240,8 +238,8 @@
 
   set page(
     margin: 20mm,
-    width: 8in,
+    width: 8.5in,
-    height: 11.5in,
+    height: 11in,
     footer: align(
       center,
       context counter(page).display(),

src/Advanced/Tropical Polynomials/macros.typ

@@ -1,4 +1,4 @@
-#import "@local/handout:0.1.0": *
+#import "./handout.typ": *
 #import "@preview/cetz:0.3.1"
 
 

src/Advanced/Tropical Polynomials/main.typ

@@ -1,4 +1,4 @@
-#import "@local/handout:0.1.0": *
+#import "./handout.typ": *
 
 #show: doc => handout(
   doc,

src/Advanced/Tropical Polynomials/parts/00 arithmetic.typ

@@ -1,4 +1,4 @@
-#import "@local/handout:0.1.0": *
+#import "../handout.typ": *
 #import "../macros.typ": *
 
 = Tropical Arithmetic
@@ -62,7 +62,8 @@ Let's expand $#sym.RR$ to include a tropical additive identity.
 #problem()
 Do tropical additive inverses exist? \
 #note([
-  Is there an inverse $y$ for every $x$ so that $x #tp y = #sym.infinity$?
+  Is there an inverse $y$ for every $x$ so that $x #tp y = #sym.infinity$? \
+  Remember that $#sym.infinity$ is the additive identity.
 ])
 
 #solution([
@@ -277,7 +278,7 @@ Fill the following tropical addition and multiplication tables
 
 #problem()
 Expand and simplify $f(x) = (x #tp 2)(x #tp 3)$, then evaluate $f(1)$ and $f(4)$ \
-Adjacent parenthesis imply tropical multiplication
+#hint([Adjacent parenthesis imply tropical multiplication])
 
 #solution([
   $

src/Advanced/Tropical Polynomials/parts/01 polynomials.typ

@@ -1,4 +1,4 @@
-#import "@local/handout:0.1.0": *
+#import "../handout.typ": *
 #import "../macros.typ": *
 #import "@preview/cetz:0.3.1"
 
@@ -20,7 +20,7 @@ for some nonnegative integer $n$ and coefficients $c_0, c_1, ..., c_n$. \
 The _degree_ of a polynomial is the largest $n$ for which $c_n$ is nonzero.
 
 #theorem()
-The _fundamental theorem of algebra_ implies that any non-constant polynomial with real coefficients
+The _fundamental theorem of algebra_ states that any non-constant polynomial with real coefficients
 can be written as a product of polynomials of degree 1 or 2 with real coefficients.
 
 #v(2mm)
@@ -30,8 +30,8 @@ can be written as $(x^2 + 2x+5)(x-2)(x+4)(x+4)$
 
 #v(2mm)
 A similar theorem exists for polynomials with complex coefficients. \
-These coefficients may be found using the roots of this polynomial. \
+These coefficients may be found using the _roots_ of this polynomial. \
-As it turns out, there are formulas that determine the roots of quadratic, cubic, and quartic #note([(degree 2, 3, and 4)]) polynomials. There are no formulas for the roots of polynomials with larger degrees---in this case, we usually rely on approximate roots found by computers.
+As you already know, there are formulas that determine the roots of quadratic, cubic, and quartic #note([(degree 2, 3, and 4)]) polynomials. There are no formulas for the roots of polynomials with larger degrees---in this case, we usually rely on appropriate roots found by computers.
 
 #v(2mm)
 In this section, we will analyze tropical polynomials:
@@ -100,7 +100,7 @@ In other words, find $r$ and $s$ so that
   ),
 )
 
-we will call $r$ and $s$ the _roots_ of $f$.
+#note([Naturally, we will call $r$ and $s$ the _roots_ of $f$.])
 
 #solution([
   Because $(x #tp r)(x #tp s) = x^2 #tp (r #tp s)x #tp s r$, we must have $r #tp s = 1$ and $r #tm s = 4$. \
@@ -116,7 +116,8 @@ we will call $r$ and $s$ the _roots_ of $f$.
 #v(1fr)
 
 #problem()
-How can we use the graph to determine these roots?
+Can you see the roots of this polynomial in the graph? \
+#hint([Yes, you can. What "features" do the roots correspond to?])
 
 #solution([The roots are the corners of the graph.])
 
@@ -316,7 +317,7 @@ into linear factors.
 #v(2mm)
 
 Whenever we say "the roots of $f$", we really mean "the roots of $accent(f, macron)$." \
-$f$ and $accent(f, macron)$ might be the same polynomial.
+Also, $f$ and $accent(f, macron)$ might be the same polynomial.
 
 #problem()
 If $f(x) = a x^2 #tp b x #tp c$, then $accent(f, macron)(x) = a x^2 #tp B x #tp c$ for some $B$. \

src/Advanced/Tropical Polynomials/parts/02 cubic.typ

@@ -1,4 +1,4 @@
-#import "@local/handout:0.1.0": *
+#import "../handout.typ": *
 #import "../macros.typ": *
 #import "@preview/cetz:0.3.1"
 

src/Warm-Ups/Odd Dice/meta.toml

@@ -4,8 +4,3 @@ title = "Odd Dice"
 [publish]
 handout = true
 solutions = true
-
-[[attribution]]
-who = "mark"
-when = 2024-02-13
-what = "Initial version of handout"

src/Warm-Ups/sin.tex

@@ -0,0 +1,37 @@
+\documentclass[
+	solutions,
+	singlenumbering,
+	nopagenumber
+]{../../../lib/tex/ormc_handout}
+\usepackage{../../../lib/tex/macros}
+
+
+\title{Warm-Up: Exact answers}
+\uptitler{\smallurl{}}
+\subtitle{Prepared by Mark on \today}
+
+\begin{document}
+
+	\maketitle
+
+	Compute the exact value of $\sin(x^\circ)$ for as many integers $x \in [0, 90]$ as you can.
+
+	\generic{Helpful identities:}
+	This is not a complete list. In many cases, geometry is more helpful than algebra. \\
+	Note that the first identity is only valid if $\alpha \in [0, 90]$.
+
+	\vspace{2mm}
+	$\sin(\frac{\alpha}{2}) = \sqrt{\frac{1 - \cos(\alpha)}{2}}$ \\
+	$\sin(\alpha + \beta) = \sin(\alpha)\cos(\beta) + \cos(\alpha)\sin(\beta)$ \\
+	$\sin(3\alpha) = 3\sin(\alpha) - 4\sin(\alpha)^3$
+
+	\begin{solution}
+		The solutions to these get ugly quickly.
+
+		\vspace{5mm}
+
+		A good order to go in is 45, 30, 60, 15, 75, 36, 18, 3, 6, 72, 9, 1. \\
+		You should be able to get all of these using only geometry and the identities above.
+	\end{solution}
+
+\end{document}

src/Warm-Ups/snake.tex

@@ -0,0 +1,233 @@
+\documentclass[
+	solutions,
+	singlenumbering,
+	nopagenumber
+]{../../../lib/tex/ormc_handout}
+\usepackage{../../../lib/tex/macros}
+
+\usepackage{ifthen}
+
+\usetikzlibrary{arrows.meta}
+\usetikzlibrary{shapes.geometric}
+\usetikzlibrary{patterns}
+
+% We put nodes in a separate layer, so we can
+% slightly overlap with paths for a perfect fit
+\pgfdeclarelayer{nodes}
+\pgfdeclarelayer{path}
+\pgfsetlayers{main,nodes}
+
+% Layer settings
+\tikzset{
+	% Layer hack, lets us write
+	% later = * in scopes.
+	layer/.style = {
+		execute at begin scope={\pgfonlayer{#1}},
+		execute at end scope={\endpgfonlayer}
+	},
+	%
+	% Arrowhead tweak
+	>={Latex[ width=2mm, length=2mm ]},
+	%
+	% Labels inside edges
+	label/.style = {
+		rectangle,
+		% For automatic red background in solutions
+		fill = \ORMCbgcolor,
+		draw = none,
+		rounded corners = 0mm
+	},
+	%
+	% Nodes
+	main/.style = {
+		draw,
+		circle,
+		fill = white,
+		line width = 0.4mm,
+		text width = 5mm,
+		align = center
+	},
+	accept/.style = {
+		draw,
+		circle,
+		fill = white,
+		double,
+		double distance = 0.5mm,
+		line width = 0.4mm,
+		text width = 5mm,
+		align = center
+	},
+}
+
+
+
+\title{Warm-Up: Snakes}
+\uptitler{\smallurl{}}
+\subtitle{Prepared by Mark on \today}
+
+\begin{document}
+
+	\maketitle
+	\newcounter{mycounter}
+	\setcounter{mycounter}{0}
+	\newif\iftmp
+
+	\begin{center}
+	\begin{tikzpicture}[scale = 0.6]
+		\begin{scope}[layer = nodes]
+			\foreach \r in {1,3,5,7,9} {
+				\foreach \i in {1,...,10} {
+					\pgfmathparse{Mod(\i-1,10)}
+					\let\x\pgfmathresult
+					\pgfmathparse{div(\i-1,10) + \r}
+					\let\y\pgfmathresult
+					\pgfmathparse{(\r-1)*10+\i}
+					\let\z\pgfmathresult
+
+					\tmpfalse
+					\pgfmathapproxequalto{\z}{4}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{5}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{19}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{21}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{28}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{31}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{35}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{44}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{47}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{52}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{53}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{59}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{70}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{76}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{81}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{88}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{98}
+					\ifpgfmathcomparison\tmptrue
+					\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
+
+					\stepcounter{mycounter}
+					\iftmp
+						\node[accept] (\arabic{mycounter}) at (2*\x, 2*\y) {
+							$\pgfmathprintnumber{\z}$
+						};
+					\else
+						\node[main] (\arabic{mycounter}) at (2*\x, 2*\y) {
+							$\pgfmathprintnumber{\z}$
+						};
+					\fi
+				}
+
+				\foreach \i in {1,...,10} {
+					\pgfmathparse{9 - Mod(\i-1,10)}
+					\let\x\pgfmathresult
+					\pgfmathparse{div(\i-1,10) + \r + 1}
+					\let\y\pgfmathresult
+					\pgfmathparse{\r*10+\i}
+					\let\z\pgfmathresult
+
+					\tmpfalse
+					\pgfmathapproxequalto{\z}{4}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{5}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{19}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{21}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{28}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{31}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{35}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{44}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{47}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{52}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{53}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{59}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{70}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{76}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{81}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{88}
+					\ifpgfmathcomparison\tmptrue
+					\else\pgfmathapproxequalto{\z}{98}
+					\ifpgfmathcomparison\tmptrue
+					\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
+
+					\stepcounter{mycounter}
+
+					\iftmp
+						\node[accept] (\arabic{mycounter}) at (2*\x, 2*\y) {
+							$\pgfmathprintnumber{\z}$
+						};
+					\else
+						\node[main] (\arabic{mycounter}) at (2*\x, 2*\y) {
+							$\pgfmathprintnumber{\z}$
+						};
+					\fi
+				}
+			}
+		\end{scope}
+
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(4) -- +(1,0) -- +(1, 13) -- +(3, 13) -> (75);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(5) -- +(0,-1) -- +(1,-1) -- +(1,1) -- (15);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(19) -- +(1, 0) -- +(1, 5) -- + (-1, 5) -- (41);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(21) -- +(1, 0) -- +(1,-5) -- +(3, -5) -- (3);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(28) -- +(1,0) -- +(1,3) -- +(3,3) -- (50);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(31) -- +(1,0) -- +(1,-7) -- +(-3, -7) -- (8);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(35) -- +(-1,0) -- +(-1,11) -- (96);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(44) -- +(-1,0) -- +(-1,7) -- +(-3,7) -- (82);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(47) -- +(1,0) -- +(1,-3) -- +(5,-3) -- (30);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(52) -- +(-1, 0) -- +(-1, -1) -- +(-5,-1) -- +(-5,-5) -- +(-11,-5) -- (23);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(53) -- +(-1,0) -- +(-1,7) -- (94);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(59) -- +(-1, 0) -- +(-1,1) -- +(-3,1) -- +(-3,9) -- +(7, 9) -- (95);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(70) -- +(-1, 0) -- +(-1, 5) -- (91);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(76) -- +(-1, 0) -- +(-1,-1) -- +(-5,-1) -- +(-5,-5) -- +(-7,-5) -- (41);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(81) -- +(0, -1) -- +(3, -1) -- +(3, -3) -- (62);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(88) -- +(1, 0) -- +(1, -3) -- +(-1,-3) -- (67);
+		\draw[->, line width = 0.6mm, rounded corners = 2mm]
+			(98) -- +(0, 1.5) -- +(15.5, 1.5) -- +(15.5,-15) -- +(13, -15) -- (12);
+	\end{tikzpicture}
+	\end{center}
+
+\end{document}

src/Warm-Ups/turing.tex

@@ -0,0 +1,96 @@
+\documentclass[
+	solutions,
+	hidewarning,
+	singlenumbering,
+	nopagenumber
+]{../../../lib/tex/ormc_handout}
+\usepackage{../../../lib/tex/macros}
+
+
+\title{Warm-Up: Turing Machine}
+\uptitler{\smallurl{}}
+\subtitle{Prepared by Mark on \today.}
+
+\begin{document}
+
+	\maketitle
+
+	Consider a turing machine that understands the following instructions:
+
+	\begin{itemize}[itemsep=2mm]
+		\item \texttt{>}: Move the tape right
+		\item \texttt{<}: Move the tape left
+		\item \texttt{+}: Increment the value in the current cell by 1. \par
+			If the resulting value exceeds 255, wrap to 0.
+		\item \texttt{-}: Decrement the value in the current cell by 1. \par
+			If the resulting value is smaller than 0, wrap to 255.
+		\item \texttt{[}: If the the value of the current cell is 0, jump to the matching \texttt{]}. \par
+			Otherwise, jump to the next instruction.
+		\item \texttt{]}: If the value of the current cell is 0, jump to the next instruction. \par
+			Otherwise, jump back to the matching \texttt{[}.
+	\end{itemize}
+
+
+	For example, the program \texttt{+>++>+++>++++>-} will set the first five cells to $[1, 2, 3, 4, 255]$. \par
+	All other cells will be zero, since they were not modified.
+
+	\problem{}
+	What does the snippet \texttt{[-]} do? \par
+	Is this different from \texttt{[+]}?
+
+	\vfill
+
+
+	\problem{}
+	What does \texttt{[->+<]} do?
+
+	\begin{solution}
+		Move the value of this cell into the next cell
+	\end{solution}
+
+	\vfill
+
+	\problem{}
+	Write a program that adds the value of the current cell to the next cell. \par
+	You do not need to preserve the value of the current cell.
+
+	\vfill
+	\pagebreak
+
+	\problem{}
+	What does \texttt{[>]} do?
+
+	\begin{solution}
+		Finds the first zero cell to the right
+	\end{solution}
+
+	\vfill
+
+	\problem{}
+	Write a program that copies the value of the current cell into the next cell,
+	preserving its initial value. \par
+	\hint{You may use as many "scratch" cells as you want.}
+
+	\vfill
+
+
+	\problem{}
+	Write a program that computes the product of the current cell and the next cell.
+
+
+	\vfill
+
+	\problem{Bonus}
+	Write a program that computes the square of the current cell. \par
+	(If your program starts at a cell with value \texttt{7}, it should end at a cell with value \texttt{49}.)
+
+	\vfill
+
+	\problem{Bonus}
+	What does \texttt{+[>[<-]<[->+<]>]>} do?
+
+	\begin{solution}
+		Finds the first non-zero cell to the right
+	\end{solution}
+
+\end{document}

tools/scripts/build.py

@@ -143,12 +143,10 @@ def build_typst(source_dir: Path, out_subdir: Path) -> IndexEntry | None:
 		[
 			TYPST_PATH,
 			"compile",
-			"--package-path",
-			f"{ROOT}/lib/typst",
 			"--ignore-system-fonts",
+			"main.typ",
 			"--input",
 			"show_solutions=false",
-			"main.typ",
 			f"{out}/{handout_file}",
 		],
 		cwd=source_dir,
@@ -166,8 +164,6 @@ def build_typst(source_dir: Path, out_subdir: Path) -> IndexEntry | None:
 			[
 				TYPST_PATH,
 				"compile",
-				"--package-path",
-				f"{ROOT}/lib/typst",
 				"--ignore-system-fonts",
 				"main.typ",
 				f"{out}/{solutions_file}",