Problems with "mathalign"

Problems with "mathalign"

[Mojca Miklavec]

Hello,

I wanted to keep Aditya busy now that he finished his wonderful new
module ;), so ...


I first wanted to ask how to number subformulas in a certain way, but
that I figured out that numbering is already causing some problems on
its own.


Consider the following examples:

\starttext

This is almost OK, but has one formula number too much here:

\startbuffer
\placeformula
\startformula
\startalign[m=2,distance=3cm]
	  a & =b
	& A & =B \\
	  c & =d
	& C & =D \\
\stopalign
\stopformula
\stopbuffer
\typebuffer
\getbuffer

This results in a very weird formula numbering

\startbuffer
\placeformula
\startformula
\startalign[m=2,distance=3cm]
	\NC a \NC =b
	\NC A \NC =B \NR
	\NC c \NC =d
	\NC C \NC =D \NR
\stopalign
\stopformula
\stopbuffer
\typebuffer
\getbuffer

Adding [+] helps, but than we have the same problem as at the beginning:

\startbuffer
\placeformula
\startformula
\startalign[m=2,distance=3cm]
	\NC a \NC =b
	\NC A \NC =B \NR[+]
	\NC c \NC =d
	\NC C \NC =D \NR[+]
\stopalign
\stopformula
\stopbuffer
\typebuffer
\getbuffer

Without placeforumla, but with [+] we don't get any numbering at all:

\startbuffer
\startformula
\startalign[m=2,distance=3cm]
	\NC a \NC =b
	\NC A \NC =B \NR[+]
	\NC c \NC =d
	\NC C \NC =D \NR[+]
\stopalign
\stopformula
\stopbuffer
\typebuffer
\getbuffer

\stoptext

CtxTools | context version: 2006.12.27 11:34
(After running "ctxtools --update" I just managed to break everything.)

Any clue?

Thanks,
    Mojca

Re: Problems with "mathalign"

[Aditya Mahajan]

On Wed, 3 Jan 2007, Mojca Miklavec wrote:

> Hello,
> 
> I wanted to keep Aditya busy now that he finished his wonderful new
> module ;), so ...
> 
> 
> I first wanted to ask how to number subformulas in a certain way, but
> that I figured out that numbering is already causing some problems on
> its own.
> 
> 
> Consider the following examples:
> 
> \starttext
> 
> This is almost OK, but has one formula number too much here:
> 
> \startbuffer
> \placeformula
> \startformula
> \startalign[m=2,distance=3cm]
> 	  a & =b
> 	& A & =B \\
> 	  c & =d
> 	& C & =D \\
> \stopalign
> \stopformula
> \stopbuffer
> \typebuffer
> \getbuffer

Do not use the latex syntax.

> This results in a very weird formula numbering

Something is broken. AFAIK, this should not give you any number.

> \startbuffer
> \placeformula
> \startformula
> \startalign[m=2,distance=3cm]
> 	\NC a \NC =b
> 	\NC A \NC =B \NR
> 	\NC c \NC =d
> 	\NC C \NC =D \NR
> \stopalign
> \stopformula
> \stopbuffer
> \typebuffer
> \getbuffer
> 
> Adding [+] helps, but than we have the same problem as at the beginning:

Adding [+] is necessary.

> \startbuffer
> \placeformula
> \startformula
> \startalign[m=2,distance=3cm]
> 	\NC a \NC =b
> 	\NC A \NC =B \NR[+]
> 	\NC c \NC =d
> 	\NC C \NC =D \NR[+]
> \stopalign
> \stopformula
> \stopbuffer
> \typebuffer
> \getbuffer

I can confirm that there is an extra number. I do not know what is 
causing this. I am not aware of anything in core-mat has changed.

I compiled My Way on mathalign, and everything has an extra number. 
hmm...

> Without placeforumla, but with [+] we don't get any numbering at all:

Yes you need the placefurmula.

> 
> \startbuffer
> \startformula
> \startalign[m=2,distance=3cm]
> 	\NC a \NC =b
> 	\NC A \NC =B \NR[+]
> 	\NC c \NC =d
> 	\NC C \NC =D \NR[+]
> \stopalign
> \stopformula
> \stopbuffer
> \typebuffer
> \getbuffer
> 
> \stoptext
> 
> CtxTools | context version: 2006.12.27 11:34
> (After running "ctxtools --update" I just managed to break everything.)
> 
> Any clue?

Something is broken.

Aditya

Re: Problems with "mathalign"

[Taco Hoekwater]

Aditya Mahajan wrote:
> 
> 
> I can confirm that there is an extra number. I do not know what is 
> causing this. I am not aware of anything in core-mat has changed.

There is that extra stuff in \everymathematics.  Could that be it?

Taco

Re: Problems with "mathalign"

[Wim Neimeijer]

[-- Attachment #1.1: Type: text/plain, Size: 1020 bytes --]

Aditya Mahajan wrote:
>> \startbuffer
>> \placeformula
>> \startformula
>> \startalign[m=2,distance=3cm]
>>   \NC a \NC =b
>>   \NC A \NC =B \NR[+]
>>   \NC c \NC =d
>>   \NC C \NC =D \NR[+]
>> \stopalign
>> \stopformula
>> \stopbuffer
>> \typebuffer
>> \getbuffer
>>     
>
> I can confirm that there is an extra number. I do not know what is 
> causing this. I am not aware of anything in core-mat has changed.
>
> I compiled My Way on mathalign, and everything has an extra number. 
> hmm...
>   
Does a solution or fix exists  for this problem ?
The problem still exists in ConTeXt  ver: 2007.01.02 13:44 MK II  fmt: 
2007.2.3  int: english/english.

I don't want to complain but in general this is really worrying, changes 
to core functionality
which worked in the past, it seems it suddenly stops working.

I saw Taco made a comment on the 3nd of January 2007 , quoting
''There is that extra stuff in \everymathematics. Could that be it?''
but unfortunately he did not provide a solution.

Regards

Wim Neimeijer

[-- Attachment #1.2: Type: text/html, Size: 1541 bytes --]

[-- Attachment #2: Type: text/plain, Size: 139 bytes --]

_______________________________________________
ntg-context mailing list
ntg-context@ntg.nl
http://www.ntg.nl/mailman/listinfo/ntg-context

Re: Problems with "mathalign"

[Aditya Mahajan]

On Mon, 19 Feb 2007, Wim Neimeijer wrote:

> Aditya Mahajan wrote:
>>> \startbuffer
>>> \placeformula
>>> \startformula
>>> \startalign[m=2,distance=3cm]
>>>   \NC a \NC =b
>>>   \NC A \NC =B \NR[+]
>>>   \NC c \NC =d
>>>   \NC C \NC =D \NR[+]
>>> \stopalign
>>> \stopformula
>>> \stopbuffer
>>> \typebuffer
>>> \getbuffer
>>> 
>> 
>> I can confirm that there is an extra number. I do not know what is causing 
>> this. I am not aware of anything in core-mat has changed.
>> 
>> I compiled My Way on mathalign, and everything has an extra number. hmm...
>> 
> Does a solution or fix exists  for this problem ?
> The problem still exists in ConTeXt  ver: 2007.01.02 13:44 MK II  fmt: 
> 2007.2.3  int: english/english.

It was fixed immediately. Update ConTeXt to either the latest stable 
version or the latest beta version.

> I don't want to complain but in general this is really worrying, changes to 
> core functionality
> which worked in the past, it seems it suddenly stops working.

There is a ConTeXt tests projects to provide regression testing. 
However, it will take some time before it can be automated. Also, if 
something in the core functionality breaks down, and is reported on 
the list, Hans or Taco provide the solution almost immediately (well, 
at most in a day or two). So, if there is a new ConTeXt beta after you 
report a bug, the beta will contain a fix.

> I saw Taco made a comment on the 3nd of January 2007 , quoting
> ''There is that extra stuff in \everymathematics. Could that be it?''
> but unfortunately he did not provide a solution.

Taco continued on the dev-context list and provided the solution. See 
http://archive.contextgarden.net/thread/20070105.080939.8ef11c87.en.html

Aditya