PreTeXt

An <abstract> can appear on an early slide, optionally. This is a standard component of a PreTeXt <article> (but not of a <book>).

This is a second paragraph of the abstract for this wonderful talk, just so we have something a bit more substantial.

This is a PreTeXt slideshow designed mostly for testing new features. As of 2019-11-16 it is only initiated, and not comprehensive. If you improve a feature, please add examples here.

1. Two conversions: print-on-demand, electronic PDF
2. Extensive use of the tcolorbox package (CSS-like)
3. Evolving styling/themes (Andrew Rechnitzer, David Farmer)

These are enumerated with capital letters.

1. Two conversions: print-on-demand, electronic PDF
2. Extensive use of the tcolorbox package (CSS-like)
3. Evolving styling/themes (Andrew Rechnitzer, David Farmer)

These are inline

1. print-on-demand
2. electronic PDF

And these have pauses.

1. Two conversions: print-on-demand, electronic PDF
2. Extensive use of the tcolorbox package (CSS-like)
3. Evolving styling/themes (Andrew Rechnitzer, David Farmer)

• XML syntax is a nested hierarchy (a tree)

  • <foo>…</foo>
  • <bar/>
  • <baz qux="corge">

• Does not have to be UGLY!
• PreTeXt is “author-friendly” (Principle #2)

• XML syntax is a nested hierarchy (a tree)

  • <foo>…</foo>
  • <bar/>
  • <baz qux="corge">

• Does not have to be UGLY!
• PreTeXt is “author-friendly” (Principle #2)

Central Processing Unit (CPU)

Controls most of the activities of the computer, performs the arithmetic and logical operations, and contains a small amount of very fast memory.

Memory

Provides storage for the instructions for the CPU and the data they manipulate.

Input/Output (I/O)

Communicates with the outside world and with mass storage devices (e.g., disks).

Bus!

A communication pathway with a protocol specifying exactly how the pathway is used. (The punctuation is just for testing.)

Central Processing Unit (CPU)

Controls most of the activities of the computer, performs the arithmetic and logical operations, and contains a small amount of very fast memory.

Memory

Provides storage for the instructions for the CPU and the data they manipulate.

Input/Output (I/O)

Communicates with the outside world and with mass storage devices (e.g., disks).

Bus!

A communication pathway with a protocol specifying exactly how the pathway is used. (The punctuation is just for testing.)

This should also test other “theorem-like”, such as <corollary>.

Here is an inline bit of code with surrounding text. print("hello world"). Here is a more text. And some more. And yet more. And a full program... with Prism support.

def f(x):
    return x**2

# many intentional blank lines below...
# you may to zoom out, but at some point better to scroll a long listing










print(f(3))

This Sage Cell is testing styling.

We have some mathematics on the page, to look for Javascript interference with MathJax. An identity due to Ramanujan:

And some more mathematics. An identity due to Ramanujan:

A single displayed equation, unnumbered on a slide.

And a multi-line display, with alignment on the equals signs.

A numbered equation on a slide, whose display also uses a macro defined in <docinfo>.

A <tabular> inside a <table>, whose title serves as a caption.

A <console> reproduces an interactive command-line session, input distinguished from output.

$ date
Thu Jul  2 10:00:00 PDT 2026
$ echo "PreTeXt"
PreTeXt

The problem with quotes on the Internet is that it is hard to verify their authenticity.

―Abraham Lincoln

A <blockquote> can carry an <attribution>, as above.

A cross-reference to a block on another slide renders as static text, since a PDF slideshow has no knowls: see Definition 1.

One with text from the target’s title: The Fundamental Theorem of Calculus.

An external reference is live in capable outputs: pretextbook.org.

Pausing doesn’t always act how you expect from LaTeX. The first and third lines are always visible.

But this one needs you to advance the slide.

(Visible from the outset.)

Subslides are another way to achieve pausing without lists.

But this is still visible from the outset.

Images can be included from external sources. As with other PreTeXt formats, you can specify the location of your exteral images in the publication file. The image below also appears in the PreTeXt Sample Article, and originated at www.texample.net.

You will want to ensure your image has an @width if you want it to fit correctly in your slide.

Images can also be generated from source. TikZ works well, and Asymptote. They can be placed in a <sidebyside>, and inside a <figure> (or both).

Common formatting macros for TikZ and Asymptote (which you expect to use repeatedly) can be placed in <docinfo>, using <latex-image-preamble> and <asymptote-preamble>, respectively.

Note that 3D Asymptote images will be rendered in WebGL, and will be interactive within your slide.

Annotated PreFigure diagrams also work well by including them in the usual way.

The content of this slide is a single short paragraph, and where it sits within the slide is the entire point.

The content of this slide is a single short paragraph, and where it sits within the slide is the entire point.