ethereality is this website.

Syntax highlighting

Integration with GNU source-highlight is available for use. If a Markdown verbatim block (indented with four spaces) begins with language: XYZ, then the remainder of the block will be highlighted with source-highlight language specification XYZ. This makes it easy to produce nice code listings, such as:

#include <stdio.h>

int main(int argc, char *argv[]) {
printf("%s: Hello, World!\n", argv[0]);
return 0;
}


It is also possible to use the same  language: XYZ syntax in inline (backquoted) Markdown code blocks, allowing things like sprintf(str, "Test %s\n", ...) or  flip :: (a -> b -> c) -> b -> a -> c or  function(a, b) return a .. ";" .. b end.

LaTeX support

There is full support for both inline and non-inline . Inline is done by putting content between a <$ and $> pair; it defaults to math-mode, so to insert is <$\text{\LaTeX}$>. This makes writing inline math-mode very natural; for example, one might write

From here, we see that if <$x \geq 0$> then <$\sqrt{x}$> is defined, and
hence that <$x - \sqrt{x}$> is lower than <$x$>, making the algorithm
faster than the one originally proposed.



To get:

From here, we see that if then is defined, and hence that is lower than , making the algorithm faster than the one originally proposed.

Non-inline is inserted by putting content between a pair of tags in the Markdown input. The output is auto-centred.

So, for example, to generate this:

One simply inserts

<latex>
\begin{flalign*}
\sum_{k=0}^{10} {100 \choose k} + \sum_{k=90}^{100} {100 \choose k}
&= 2 \times \sum_{k=0}^{10} {100 \choose k} \\
&= 13215687346272
\end{flalign*}
</latex>


gnuplot integration

By enclosing a list of gnuplot commands in tags, it is possible to generate figures. For example, we can look at some relationships between various functions of :

By putting this into the markdown:

<plot>
plot [-1:1] x + sqrt(x), x*x, x*x*x - x*x, x*x*x*x - x*x*x*x*x + x with lines;
</plot>


Or, more interestingly, a plot of some accumulated data:

graphviz integration

By enclosing a graphviz description in tags, it is possible to have graphs automatically rendered and inserted into the page. For example, we can insert a Petersen graph: