Moodle 2 and the future of the Algebra Filter

Text Expression Syntax

by Marc Grober -
Number of replies: 0
Based on Christina's post I searched Webworks and found these two links for using webworks text expressions (the first one is arguably replaced by the second):
Is this usage consistent with your experience? Are there any other specifics that anyone else wants to add? For example, I note the absence of the nth root but have found instructional material elsewhere on the web which suggests that webworks uses the same notation as mathematica (i.e. $$x^{1\over n}$$ for $$\sqrt[n]{x}$$).

Is this a subset of a more widely known syntax? Can other systems provide competent parsing of the syntax more economically (for example, can this also be parsed by asciimathml for example)? How did the webworks system decide upon this system and to what extent will webworks remain with such syntax?