Dear All,
Following the instructions in tagging.pdf,
I tried
\setupbackend[format=pdf/ua-2]
\setuptagging[state=start]
\enabledirectives [backend.usetags=crap]
\registermathsymbol[default][en][ z ][the variable]
\registermathsymbol[default][en][ k ][the index]
\starttext
\startformula
\startalign
\NC \left|(z_0+h)^n - z_0^n\right| \NC = \left|\sum_{k=1}^n \binom{n}{k}h^k
z_0^{n-k}\right| \NR
\NC \NC = \left |h \sum_{k=0}^{n-1} \binom{n}{k+1} h^k z_0^{n-1-k}\right| \NR
\NC \NC = \left|h \sum_{k=0}^{n-1} \frac n {k+1} \binom{n-1}{k} h^k
z_0^{n-1-k}\right| \NR
\NC \NC \le n | h| \sum_{k=0}^{n-1} \binom{n-1}{k} |h|^k |z_0|^{n-1-k} \NR
\NC \NC \le n | h| (|z_0|+|h|)^{n-1} \NR
\stopalign
\stopformula
\stoptext
This creates within the pdf the XML attachment below:
math-0001.xml
Description: XML document
This XML contains all the information from the formula. Wrapping it into
\usemodule[mathml]
\starttext
\xmlprocessdata{}{
% content of XML file
}{}
\stoptext
produces
Untitled.pdf
Description: Adobe PDF document
which is also what my Mac screen reads from the original PDF, but it is evidently not what I want. Does someone have a working example that shows how to do this right? Thanks, Matthias
___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___________________________________________________________________________________
