Pluto Markdown Not Working

General Usage
1

Hello,

I am trying to emulate the markdown in the Pluto NB shown here.

Here’s what it looks like in my notebook.

begin
	Cmin=10.0; Cmax=200.;
	Cslider = @bind SlideValC Slider(Cmin:0.1:Cmax, default=51);
	md" $(Cmin) J/m^2/K $(Cslider) $(Cmax)$"
end

But this results in the following, which does not look right and furthermore has no slider for me to manipulate.
image

How can I get it render to correctly? What am I doing wrong? I tried with triple quotes and it makes no difference.

I’m using the following packages
Plots, PlutoUI, OffsetArrays, LaTeXStrings, Markdown
Also, if it matters, I am using Firefox

2

This isn’t actually a Pluto issue, it’s just a clash between Julia’s string interpolation using a single $ and inserting LaTeX into markdown with paired $$. Usually, a bunch of characters without spaces between $$ will be interpreted as LaTeX, e.g. the $C(max)$ at the end of your string (although the actual rules for what gets interpreted as what are not super straightforward).

Actually, the syntax highlighting here is also giving you a hint that the last $ at the end is not needed. If you remove it, it renders correctly:

begin
	Cmin=10.0; Cmax=200.;
	Cslider = @bind SlideValC Slider(Cmin:0.1:Cmax, default=51);
	md" $(Cmin) J/m^2/K $(Cslider) $(Cmax)"
end

image

3

Thanks!

4

How would I get the units to display as LaTeX? Manually insert a superscript 2 somehow on the meters?

5

I’m not sure if it will work with LaTeX, but if it’s just the superscript 2, you could always just insert the superscript manually, via \^2<tab> shortcut.

6

Hm - am I taking the wrong approach here? Should I even be trying to typeset the superscript with LaTeX? It was natural for me to try to express the units using LaTeX within a piece of markdown, since the expression superscripts. But should I be trying to use the build-in short cuts you mention? (didn’t even realize you use them for stuff besides inserting greek characters).

7

No, LaTeX should be the preferred way, but it can be hard to get it working with the standard $ delimiters.

Actually, it turns out that Julia’s flavor of Markdown supports using double backticks to surround LaTeX, so your line from above is better written as

md" $Cmin ``J/m^2/K`` $(Cslider) $(Cmax)"

which renders as
image

2 Likes
8

Thanks - that link is very helpful.

9

I think units are generally typeset upstraight (unlike the slanted mathmode), as in the SI Unit package for LaTeX. So you might prefer to use plain markdown for them, like J m⁻² K⁻¹ maybe?

1 Like