Here is another example, this time not within a block, but within an
enumeration again:
The source:
\startproperty
Let $a$ and $b$ be any numbers such that $a=b$. Then, if $c$ is
any number other than zero,
\placeformula[-]
\startformula
ac=bc.\index{equations+multiplication}
\stopformula
If $c$ is any number other than zero, then
\placeformula[-]
\startformula
\frac ac=\frac bc.\index{equations+division}
\stopformula
\stopproperty
Where property is defined:
\defineframedtext[MyBox]
\definemeasure[BoxWidth][\textwidth]
\defineblank[BoxBlank][medium]
\setupframedtexts
[MyBox]
[width=\measure{BoxWidth},
before={\blank[BoxBlank]},
after={\blank[BoxBlank]},
background=color,
frame=no,
location=middle]
\setuplabeltext[property=Property]
\defineenumeration
[Default]
[location=serried,
width=broad,
text=\labeltext{},
headstyle=bold,
inbetween=\blank,
before=\blank,
after=\blank,
way=bysection,
sectionnumber=no,
number=yes,
right=.]
\defineenumeration
[property]
[Default]
[text=\labeltext{property},
before={\startMyBox[backgroundcolor=lavender]},
after=\stopMyBox,
way=bysection,
sectionnumber=no]
And the error. Again, the \frac command seems to be the culprit.
(./EquationsSection.tuo) [1.15] [MP to PDF] (./EquationsSection-
mpgraph.1)
[2.16] [3.17]
! Missing number, treated as zero.
<to be read again>
\relax
\dogenfrac ...{\begingroup #4\endgroup #2#3\relax
#5}}
\mathematics #1->\relax \ifmmode #1
\else $#1$\fi
l.275 \frac ac
=\frac bc.\index{equations+division}
?
On Jul 4, 2007, at 12:30 PM, David Arnold wrote:
> Hi,
>
> In setting out to update our intermediate algebra textbook for the
> fall semester (http://msenux.redwoods.edu/IntAlgText/), I've found
> that a file that would formerly compile under a previous version of
> context will no longer compile.
>
> Preliminaries $ ctxtools --contextversion
> CtxTools | context version: 2007.06.06 09:53 (/usr/local/gwTeX/
> texmf.local/tex/context/base/context.tex)
> CtxTools | context version: 2007.06.06 09:53 (/usr/local/gwTeX/
> texmf.local/tex/context/base/cont-new.tex)
>
> Preliminaries $ texmfstart texexec --version
> TeXExec | version 6.2.0 - 1997-2006 - PRAGMA ADE/POD
>
> The error message I receive is:
>
> textblocks : reading blocks from NumberSystemsExercises.tub
> (./NumberSystemsExercises.tub
> textblocks : shortanswer loaded and typeset
> textblocks : shortanswer loaded and processed
> textblocks : shortanswer loaded and typeset
> textblocks : shortanswer loaded and processed
> textblocks : shortanswer loaded and typeset
> textblocks : shortanswer loaded and processed
> textblocks : shortanswer loaded and typeset
> textblocks : shortanswer loaded and processed
> textblocks : shortanswer loaded and typeset
> ! Missing number, treated as zero.
> <to be read again>
> \relax
> \dogenfrac ...{\begingroup #4\endgroup #2#3\relax
> #5}}
> \mathematics #1->\relax \ifmmode #1
> \else $#1$\fi
> l.216 $ \frac{81}{125}
> $
> ?
>
> The point in the source that seems to cause the difficulty is:
>
> \noindent In \in{Exercises}[ex:secqu.9]-\in[ex:secqu.16],
> convert the given decimal to a fraction.
>
> % Exercise #9
> \beginquestion
> \startquestion[ex:secqu.9]
> $0.648$
> \stopquestion
> \endquestion
>
> \beginlonganswer
> \startanswer
> There are three decimal places, so
> $0.648=\frac{648}{1000}=\frac{81}{125}$.
> \stopanswer
> \endlonganswer
>
> \beginshortanswer
> \startanswer
> $\displaystyle \frac{81}{125}$
> \stopanswer
> \endshortanswer
>
> Shortanswer and longanswer are blocks. Startanswer is an enumeration.
> I've tried this in other files and gotten similar errors, which seem
> to be tied to the frac command.
>
> Can anyone help?
> ______________________________________________________________________
> _____________
> If your question is of interest to others as well, please add an
> entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/
> ntg-context
> webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive : https://foundry.supelec.fr/projects/contextrev/
> wiki : http://contextgarden.net
> ______________________________________________________________________
> _____________
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : https://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
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