Dear All,
I would like to typeset continued fractions as attempted and failed in the
second line of the following MWE:
\def\cFrac#1#2{%
\vcenter{\hbox{\strut$#1$\,\vrule}\hrule\hbox{\strut\vrule\,$#2$}}}
\starttext
\startformula
\startalign
\NC a_0+a_0a_1+a_0 a_1 a_2+a_0 a_1 a_2 a_3 \NC =
\cfrac{a_0}{1-\cfrac{a_1}{1+a_1-\cfrac{a_2}{1+a_2-\cfrac{a_2}{1+a_2-\cfrac{a_3}{1+a_3-\cdots}}}}}\NR
%\NC \NC =
\frac{a_0|}{|1}-\frac{a_1|}{|1+a_1}-\frac{a_2|}{|1+a_2}-\frac{a_3|}{|1+a_3}-\cdots\NR
\NC \NC =
\cFrac{a_0}{1}-\cFrac{a_1}{1+a_1}-\cFrac{a_2}{1+a_2}-\cFrac{a_3}{1+a_3}-\cdots\NR
\stopalign
\stopformula
\stoptext
The macro is from
https://tex.stackexchange.com/questions/68190/how-do-i-typeset-continued-fractions-in-pringsheims-concise-notation
where this question is discussed for LaTeX.
Unfortunately, the vertical bars on the top of the fractions do not align with
the right end of the fraction bar.
Any suggestions?
Thanks,
Matthias
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