align question

align question

[David Arnold]

On another matter, I'm having some alignment issues. Consider the  
following code:

\starttext

\startformula
\startalign[n=4,{left, middle, middle, middle}]
aaa&b&cccc&d\\
a&bbb&c&ddd
\stopalign
\stopformula

\stoptext

Compile this and you will notice that the alignment parameters {left,  
middle, middle, middle} are ignored. And you can change these to  
anything else (left, middle, right), with absolutely no change. Any  
idea what is going on here?

Re: align question

[Aditya Mahajan]

On Fri, 14 Jul 2006, David Arnold wrote:

> On another matter, I'm having some alignment issues. Consider the
> following code:
>
> \starttext
>
> \startformula
> \startalign[n=4,{left, middle, middle, middle}]
> aaa&b&cccc&d\\
> a&bbb&c&ddd
> \stopalign
> \stopformula
>
> \stoptext
>
> Compile this and you will notice that the alignment parameters {left,
> middle, middle, middle} are ignored. And you can change these to
> anything else (left, middle, right), with absolutely no change. Any
> idea what is going on here?

Wrong syntax. It should be

\startalign[n=4,align={left,....}]

I would strongly suggest to use

\NC aaaa \NC bb \NC d \NR

instead of "raw" & and \\.


Aditya

Re: align question

[Bruce H. Wagner]

At 10:21 PM -0700 7/14/06, Aditya Mahajan wrote:
>On Fri, 14 Jul 2006, David Arnold wrote:
>
>>  On another matter, I'm having some alignment issues. Consider the
>>  following code:
>>
>>  \starttext
>>
>>  \startformula
>>  \startalign[n=4,{left, middle, middle, middle}]
>>  aaa&b&cccc&d\\
>>  a&bbb&c&ddd
>>  \stopalign
>>  \stopformula
>>
>>  \stoptext
>>
>  > Compile this and you will notice that the alignment parameters {left,
>  > middle, middle, middle} are ignored. And you can change these to
>>  anything else (left, middle, right), with absolutely no change. Any
>>  idea what is going on here?
>
>Wrong syntax. It should be
>
>\startalign[n=4,align={left,....}]
>
>I would strongly suggest to use
>
>\NC aaaa \NC bb \NC d \NR
>
>instead of "raw" & and \\.
>
>
>Aditya


The "align=" seems to make no difference. In fact, I had tried 
including it before.

Also, I'm finding that the {left,middle, middle, middle} parameters 
are still ignored when using the Context syntax \NC \NR, as in:

\startformula
\startalign[n=4,align={left, middle, middle, middle}]
\NC aaa\NC b\NC cccc\NC d\NR
\NC a\NC bbb\NC c\NC ddd\NR
\stopalign
\stopformula

Interestingly enough, the alignment is slightly different than I get 
when using the LaTeX syntax, but I still can't get alignment to work 
correctly.

Incidentally, the reason I am using the LaTeX syntax is that we are 
translating LaTeX code into Context automatically using a perl 
script, and it's therefore much easier to stick to whatever LaTeX 
code works. Basically, I just want something comparable to the array 
environment in LaTeX, which works very nicely.

Thanks,
Bruce



-- 
__________________________________________________________________________
Bruce H. Wagner             e-mail:  bruce-wagner@redwoods.edu
Department of Mathematics   phone:   707-476-4207
College of the Redwoods     fax:     707-476-4424
7351 Tompkins Hill Road     WWW: 
http://online.redwoods.edu/instruct/bwagner
Eureka, CA 95501

Re: align question

[Aditya Mahajan]

On Fri, 14 Jul 2006, Bruce H. Wagner wrote:

> At 10:21 PM -0700 7/14/06, Aditya Mahajan wrote:
>> On Fri, 14 Jul 2006, David Arnold wrote:
>>
>>>  On another matter, I'm having some alignment issues. Consider the
>>>  following code:
>>>
>>>  \starttext
>>>
>>>  \startformula
>>>  \startalign[n=4,{left, middle, middle, middle}]
>>>  aaa&b&cccc&d\\
>>>  a&bbb&c&ddd
>>>  \stopalign
>>>  \stopformula
>>>
>>>  \stoptext
>>>
>>  > Compile this and you will notice that the alignment parameters {left,
>>  > middle, middle, middle} are ignored. And you can change these to
>>>  anything else (left, middle, right), with absolutely no change. Any
>>>  idea what is going on here?
>> 
>> Wrong syntax. It should be
>> 
>> \startalign[n=4,align={left,....}]
>> 
>> I would strongly suggest to use
>> 
>> \NC aaaa \NC bb \NC d \NR
>> 
>> instead of "raw" & and \\.
>> 
>> 
>> Aditya
>
>
> The "align=" seems to make no difference. In fact, I had tried including it 
> before.
>
> Also, I'm finding that the {left,middle, middle, middle} parameters are still 
> ignored when using the Context syntax \NC \NR, as in:
>
> \startformula
> \startalign[n=4,align={left, middle, middle, middle}]
> \NC aaa\NC b\NC cccc\NC d\NR
> \NC a\NC bbb\NC c\NC ddd\NR
> \stopalign
> \stopformula

Strange. This works perfectly here.

> Interestingly enough, the alignment is slightly different than I get when 
> using the LaTeX syntax, but I still can't get alignment to work correctly.

Can you send me your context file and pdf offlist?

> Incidentally, the reason I am using the LaTeX syntax is that we are 
> translating LaTeX code into Context automatically using a perl script, and 
> it's therefore much easier to stick to whatever LaTeX code works. Basically, 
> I just want something comparable to the array environment in LaTeX, which 
> works very nicely.

There is \startmathmatrix \stopmathmatrix which is equivalent to latex 
array environment. This reminds me that I need to update myway on 
startalign to include the matrix features.

Aditya

Re: align question

[Hans Hagen]

Bruce H. Wagner wrote:
>
>
> Incidentally, the reason I am using the LaTeX syntax is that we are 
> translating LaTeX code into Context automatically using a perl 
> script, and it's therefore much easier to stick to whatever LaTeX 
> code works. Basically, I just want something comparable to the array 
> environment in LaTeX, which works very nicely.
>   
Aditya is in more or less charge of the specification/tryout part of the math extensions and taco/myself implement things based on that input, so i suggest that the two of you come up with specs    

Hans  

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-----------------------------------------------------------------

Re: align question

[Aditya Mahajan]

On Mon, 17 Jul 2006, Hans Hagen wrote:

> Bruce H. Wagner wrote:
>> 
>> 
>> Incidentally, the reason I am using the LaTeX syntax is that we are 
>> translating LaTeX code into Context automatically using a perl script, and 
>> it's therefore much easier to stick to whatever LaTeX code works. 
>> Basically, I just want something comparable to the array environment in 
>> LaTeX, which works very nicely.
>> 
> Aditya is in more or less charge of the specification/tryout part of the math 
> extensions and taco/myself implement things based on that input, so i suggest 
> that the two of you come up with specs

Context supports everything that latex array provides, with a slightly 
different syntax. Some extract from the update on myway on alignment 
(I am still working on it)

% \def\ShowExample
%  {\hairline
%    \typebuffer
%    \hairline
%    \getbuffer}


\CONTEXT\ provides \tex{startmatrix} for generic alignment mechanism.
\startbuffer
\startformula
   \startmatrix
     \NC A \NC B \NC C \NR
     \NC a \NC b \NC c \NR
     \NC 1 \NC 2 \NC 3 \NR
   \stopmatrix
\stopformula
\stopbuffer
\ShowExample

It can take a \type<<left=>> and \type<<right=>> option which can be 
used to
typeset matrices
\startbuffer
\startformula
   I = \startmatrix[left={\left(\,},right={\,\right)}]
     \NC 1 \NC 0 \NC 0 \NR
     \NC 0 \NC 1 \NC 0 \NR
     \NC 0 \NC 0 \NC 1 \NR
   \stopmatrix
\stopformula
\stopbuffer
\ShowExample

It is possible to \tex{definemathmatrix} to use the construct 
repeatedly.
\startbuffer
% Paranthesis
\definemathmatrix
   [pmatrix]
   [left={\left(\,},right={\,\right)}]

% Brackets
\definemathmatrix
   [bmatrix]
   [left={\left[\,},right={\,\right]}]

% Curly braces
\definemathmatrix
   [Bmatrix]
   [left={\left\{\,},right={\,\right\}}]

% vertical bars
\definemathmatrix
   [vmatrix]
   [left={\left\vert\,},right={\,\right\vert}]

% double vertical bars
\definemathmatrix
   [Vmatrix]
   [left={\left\Vert\,},right={\,\right\Vert}]

\startformula
   I = \startpmatrix
     \NC 1 \NC 0 \NC 0 \NR
     \NC 0 \NC 1 \NC 0 \NR
     \NC 0 \NC 0 \NC 1 \NR
   \stoppmatrix
   = \startbmatrix
     \NC 1 \NC 0 \NC 0 \NR
     \NC 0 \NC 1 \NC 0 \NR
     \NC 0 \NC 0 \NC 1 \NR
   \stopbmatrix
   = \startBmatrix
     \NC 1 \NC 0 \NC 0 \NR
     \NC 0 \NC 1 \NC 0 \NR
     \NC 0 \NC 0 \NC 1 \NR
   \stopBmatrix
\stopformula
\startformula
   \startvmatrix
     \NC a \NC b \NR
     \NC c \NC d \NR
   \stopvmatrix
   \quad
   \startVmatrix
     \NC a \NC b \NR
     \NC c \NC d \NR
   \stopVmatrix
\stopformula
\stopbuffer
\ShowExample

It is possible to change the alignment of columns using \type{align=} 
option.
\startbuffer
\startformula
   \text{Let } A = \startpmatrix[align={left,right}]
     \NC 1 \NC 2  \NR
     \NC 3 \NC -5 \NR
   \stoppmatrix
\stopformula
\stopbuffer
\ShowExample

Re: align question

[Bruce H. Wagner]

Aditya,

Thanks for the information. Since you indicated that \startalign 
worked correctly on your system, I decided that I should first check 
to see if I had the latest Context. After updating, the problems that 
I was having disappeared. So you'll be glad to know that \startalign 
does indeed appear to work as it should. Sorry about the false alarm.

I'll try out the \startmatrix options as well to see if those will 
fit my needs better for some constructions. Thanks for the detailed 
syntax.

---Bruce


At 8:12 AM -0700 7/18/06, Aditya Mahajan wrote:
>On Mon, 17 Jul 2006, Hans Hagen wrote:
>
>>  Bruce H. Wagner wrote:
>>>
>>>
>>>  Incidentally, the reason I am using the LaTeX syntax is that we are
>>>  translating LaTeX code into Context automatically using a perl
>script, and
>>>  it's therefore much easier to stick to whatever LaTeX code works.
>>>  Basically, I just want something comparable to the array environment
>in
>>>  LaTeX, which works very nicely.
>>>
>>  Aditya is in more or less charge of the specification/tryout part of
>the math
>>  extensions and taco/myself implement things based on that input, so i
>suggest
>>  that the two of you come up with specs
>
>Context supports everything that latex array provides, with a slightly
>different syntax. Some extract from the update on myway on alignment
>(I am still working on it)
>
>% \def\ShowExample
>%  {\hairline
>%    \typebuffer
>%    \hairline
>%    \getbuffer}
>
>
>\CONTEXT\ provides \tex{startmatrix} for generic alignment mechanism.
>\startbuffer
>\startformula
>    \startmatrix
>      \NC A \NC B \NC C \NR
>      \NC a \NC b \NC c \NR
>      \NC 1 \NC 2 \NC 3 \NR
>    \stopmatrix
>\stopformula
>\stopbuffer
>\ShowExample
>
>It can take a \type<<left=>> and \type<<right=>> option which can be
>used to
>typeset matrices
>\startbuffer
>\startformula
>    I = \startmatrix[left={\left(\,},right={\,\right)}]
>      \NC 1 \NC 0 \NC 0 \NR
>      \NC 0 \NC 1 \NC 0 \NR
>      \NC 0 \NC 0 \NC 1 \NR
>    \stopmatrix
>\stopformula
>\stopbuffer
>\ShowExample
>
>It is possible to \tex{definemathmatrix} to use the construct
>repeatedly.
>\startbuffer
>% Paranthesis
>\definemathmatrix
>    [pmatrix]
>    [left={\left(\,},right={\,\right)}]
>
>% Brackets
>\definemathmatrix
>    [bmatrix]
>    [left={\left[\,},right={\,\right]}]
>
>% Curly braces
>\definemathmatrix
>    [Bmatrix]
>    [left={\left\{\,},right={\,\right\}}]
>
>% vertical bars
>\definemathmatrix
>    [vmatrix]
>    [left={\left\vert\,},right={\,\right\vert}]
>
>% double vertical bars
>\definemathmatrix
>    [Vmatrix]
>    [left={\left\Vert\,},right={\,\right\Vert}]
>
>\startformula
>    I = \startpmatrix
>      \NC 1 \NC 0 \NC 0 \NR
>      \NC 0 \NC 1 \NC 0 \NR
>      \NC 0 \NC 0 \NC 1 \NR
>    \stoppmatrix
>    = \startbmatrix
>      \NC 1 \NC 0 \NC 0 \NR
>      \NC 0 \NC 1 \NC 0 \NR
>      \NC 0 \NC 0 \NC 1 \NR
>    \stopbmatrix
>    = \startBmatrix
>      \NC 1 \NC 0 \NC 0 \NR
>      \NC 0 \NC 1 \NC 0 \NR
>      \NC 0 \NC 0 \NC 1 \NR
>    \stopBmatrix
>\stopformula
>\startformula
>    \startvmatrix
>      \NC a \NC b \NR
>      \NC c \NC d \NR
>    \stopvmatrix
>    \quad
>    \startVmatrix
>      \NC a \NC b \NR
>      \NC c \NC d \NR
>    \stopVmatrix
>\stopformula
>\stopbuffer
>\ShowExample
>
>It is possible to change the alignment of columns using \type{align=}
>option.
>\startbuffer
>\startformula
>    \text{Let } A = \startpmatrix[align={left,right}]
>      \NC 1 \NC 2  \NR
>      \NC 3 \NC -5 \NR
>    \stoppmatrix
>\stopformula
>\stopbuffer
>\ShowExample


-- 
__________________________________________________________________________
Bruce H. Wagner             e-mail:  bruce-wagner@redwoods.edu
Department of Mathematics   phone:   707-476-4207
College of the Redwoods     fax:     707-476-4424
7351 Tompkins Hill Road     WWW: 
http://online.redwoods.edu/instruct/bwagner
Eureka, CA 95501