Musing on the Web I discovered those little gems: JEuclid, Open Office Math and ASCIIMathML.

JEuclid is a renderer for MathML. MathML is an XML-based representation of mathematical formulæ. It has a FOP plugin, which transforms an embedded MathML expression into a nice formula in the resulting PDF.

http://jeuclid.sourceforge.net

JEuclid claims it supports the `.mml`

files exported by Open Office Math.

MathML is horribly verbose and not intended to be used by humans, but rather to help programs to interoperate.

OpenOffice Math is a math formula editor, bundled with Open Office. It’s partially WYSIWYG as it lets you type a formula in plain text and produces a preview in (quasi) real time. Open Office Math favors its `.odf`

format but is able to save and load formulæ in MathML. Its text-based editor supports formulæ like this:

f(x)=sum from{n=0} to{infinity} { { f^{(n)}(a) } over {n!} (x-a)^n }

You can see OpenOffice Math in action here: http://en.wikipedia.org/wiki/OpenOffice.org_Math

Used together, JEuclid and OpenOffice Math could make Novelang more attractive to TeX users, who always have been unbeatable when it comes to craft beautiful graphics from text-based formulæ.

Novelang could learn to recognize a reference to a MathML file to be edited with Open Office:

When ``a > b`` we always have math:my-formula.mml bla bla blah.

In a perfect world, Novelang would support formulæ inside the source document (with a tweak to make a `n:lines-of-literal`

appear inside a paragraph).

When ``a > b`` we always have <<<math f(x)= ... >>> blah blah blah.

This requires a translator from text-based formula to MathML. Such a translator is hard to find, especially with the OSS constraint.

Maybe I’ve found this rare beast, with ASCIIMathML. It’s a Javascript-based translator designed to run inside a Web browser. The interactive demo is stunning!

http://mathcs.chapman.edu/~jipsen/mathml/asciimath.html

It recognizes TeX (same formula as above):

$f(x)=\sum_{n=0}^\infty\frac{f^{(n)}(a)}{n!}(x-a)^n$

… or its custom ASCII-based format. Here again, the same formula:

`f(x)=sum_(n=0)^oo(f^((n))(a))/(n!)(x-a)^n`

ASCIIMathML is released under the LGPL. Great. I just wonder if it works inside a Java-powered Javascript interpreter.

## 1 comment:

This one could also make sense:

Pmml2SVG is a MathML-to-SVG converter. (It requires the STIX Fonts that seem downloadable from here.)

One could dream of such a pipeline so equations get viewable from every user agent:

asciimathml -> mathml -> SVG -> bitmap

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