We have a problem --- Old file no longer compiles

We have a problem --- Old file no longer compiles

[David Arnold]

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?
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___________________________________________________________________________________

Re: We have a problem --- Old file no longer compiles

[David Arnold]

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
___________________________________________________________________________________

Re: We have a problem --- Old file no longer compiles

[Aditya Mahajan]

On Wed, 4 Jul 2007, David Arnold wrote:

> Here is another example, this time not within a block, but within an
> enumeration again:

The newmat module seems to be the culprit. After loading newmat add

\unexpanded\def\frac#1#2{\mathematics{\genfrac{}{}{}\donothing{#1}{#2}}}

and it should work fine. I do not really understand why this is 
failing.

Aditya
___________________________________________________________________________________
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
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archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: We have a problem --- Old file no longer compiles

[Aditya Mahajan]

On Wed, 4 Jul 2007, Aditya Mahajan wrote:

> On Wed, 4 Jul 2007, David Arnold wrote:
>
>> Here is another example, this time not within a block, but within an
>> enumeration again:
>
> The newmat module seems to be the culprit. After loading newmat add
>
> \unexpanded\def\frac#1#2{\mathematics{\genfrac{}{}{}\donothing{#1}{#2}}}
>
> and it should work fine. I do not really understand why this is
> failing.

Ok. The third argument of \genfrac should be {} and not \empty, 
otherwise \ifx @#3@ in \genfrac evaluates to false. So, either we need 
to change \ifx @#3@ to something more robust, or revert back to older 
definitions of (d|t)frac.

Aditya

___________________________________________________________________________________
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: We have a problem --- Old file no longer compiles

[David Arnold]

Aditya,

Thanks for the reply. As far as I know, we don't explicitly import  
newmat in our environment files:

trunk $ grep usemodule *
bookenv-clean1-base.tex:\usemodule[math-ext]
bookenv-clean1-colors.tex:\usemodule[colors]

As  you can see, we do use the module math-ext.


On Jul 4, 2007, at 2:57 PM, Aditya Mahajan wrote:

> On Wed, 4 Jul 2007, David Arnold wrote:
>
>> Here is another example, this time not within a block, but within an
>> enumeration again:
>
> The newmat module seems to be the culprit. After loading newmat add
>
> \unexpanded\def\frac#1#2{\mathematics{\genfrac{}{}{}\donothing{#1} 
> {#2}}}
>
> and it should work fine. I do not really understand why this is
> failing.
>
> Aditya
> ______________________________________________________________________ 
> _____________
> 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
___________________________________________________________________________________

Re: We have a problem --- Old file no longer compiles

[Aditya Mahajan]

On Wed, 4 Jul 2007, David Arnold wrote:
>
> On Jul 4, 2007, at 2:57 PM, Aditya Mahajan wrote:
>
>> On Wed, 4 Jul 2007, David Arnold wrote:
>>
>>> Here is another example, this time not within a block, but within an
>>> enumeration again:
>>
>> The newmat module seems to be the culprit. After loading newmat add
>>
>> \unexpanded\def\frac#1#2{\mathematics{\genfrac{}{}{}\donothing{#1}
>> {#2}}}
>>
>> and it should work fine. I do not really understand why this is
>> failing.
>>
> Aditya,
>
> Thanks for the reply. As far as I know, we don't explicitly import
> newmat in our environment files:
>
> trunk $ grep usemodule *
> bookenv-clean1-base.tex:\usemodule[math-ext]
> bookenv-clean1-colors.tex:\usemodule[colors]
>
> As  you can see, we do use the module math-ext

Firstly, you do not use to explicitly use math-ext. AFAIU, it is 
included automatically. Secondly, something in your setup is including 
newmat, because \dogenfrac is defined in newmat. Look into the log 
file or the tui file for newmat. If newmat is not being loaded, then 
something strange is happening.

Aditya
___________________________________________________________________________________
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
___________________________________________________________________________________

Re: We have a problem --- Old file no longer compiles

[David Arnold]

Yes, it is getting loaded:

system          : module newmat loaded

Turns out it's not in our style files, but in the exercise file that  
I am compiling:

\startcomponent NumberSystemsExercises

\project book
\product Preliminaries/PreliminariesChapter

\usemodule[newmat]
\usemodule[math-ext]
\usemodule[fig-base]
\usefigurebase[figures/figlibNumberSystemsExercises]


On Jul 4, 2007, at 10:02 PM, Aditya Mahajan wrote:

> On Wed, 4 Jul 2007, David Arnold wrote:
>>
>> On Jul 4, 2007, at 2:57 PM, Aditya Mahajan wrote:
>>
>>> On Wed, 4 Jul 2007, David Arnold wrote:
>>>
>>>> Here is another example, this time not within a block, but  
>>>> within an
>>>> enumeration again:
>>>
>>> The newmat module seems to be the culprit. After loading newmat add
>>>
>>> \unexpanded\def\frac#1#2{\mathematics{\genfrac{}{}{}\donothing{#1}
>>> {#2}}}
>>>
>>> and it should work fine. I do not really understand why this is
>>> failing.
>>>
>> Aditya,
>>
>> Thanks for the reply. As far as I know, we don't explicitly import
>> newmat in our environment files:
>>
>> trunk $ grep usemodule *
>> bookenv-clean1-base.tex:\usemodule[math-ext]
>> bookenv-clean1-colors.tex:\usemodule[colors]
>>
>> As  you can see, we do use the module math-ext
>
> Firstly, you do not use to explicitly use math-ext. AFAIU, it is
> included automatically. Secondly, something in your setup is including
> newmat, because \dogenfrac is defined in newmat. Look into the log
> file or the tui file for newmat. If newmat is not being loaded, then
> something strange is happening.
>
> Aditya
> ______________________________________________________________________ 
> _____________
> 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
___________________________________________________________________________________