Math with nath
Nath stands for "natural math". Our nath module is a translation of the nath LaTeX package (by Michal Marvan) to ConTeXt by Giuseppe Bilotta (Oblomov). Is it built ontop of the amsl module.
\usemodule[nath]
The documentation in the source is still about LaTeX, so I don't know what I should tell you here, sorry. --Hraban
This LaTeX nath documentation is available at CTAN --mdiam
Here you can try "natural math" (now renamed to "calculator math") online; but I don't know if it’s the same as the nath module provides.