Align a compound inequality

Align a compound inequality

[David Arnold]

All,

I have:

\placeformula[-]
\startformula
   \startalign[m=2]
     3-2x&<-1 & 3-2x&>1\\
      -2x&<-4 &  -2x&>-2\\
        x&>2  &    x&<1
   \stopalign
\stopformula

And it works. However, I want to sqeeze the word "or" between the  
inequalities on the first row so that it reads:

3 - 2x < -1  or  3 - 2x > 1

How can I do this?

I am not sure what m and n are meant to do with this code. Hans said  
n=n_of_columns and m=n_of_pairs, but I am not sure what these mean as  
relates to my problem above.

Ideas?

Re: Align a compound inequality

[Aditya Mahajan]

<--- On Jan 20, David Arnold wrote --->

> All,
>
> I have:
>
> \placeformula[-]
> \startformula
> \startalign[m=2]
>   3-2x&<-1 & 3-2x&>1\\
>    -2x&<-4 &  -2x&>-2\\
>      x&>2  &    x&<1
> \stopalign
> \stopformula
>
> And it works. However, I want to sqeeze the word "or" between the 
> inequalities on the first row so that it reads:
>
> 3 - 2x < -1  or  3 - 2x > 1
>
> How can I do this?

This is how I would do this,

\startformula \startalign[n=5,align={right,left,middle,right,left}]
  3 - 2x & < -1 & \quad \text{or} \quad & 3-2x & > 1 \\
  -2x < & -4 & \text{or} & -2x &> -2 \\
\stopalign \stopformula


-- 
Aditya Mahajan, EECS Systems, University of Michigan
http://www.eecs.umich.edu/~adityam || Ph: 7342624008

Re: Align a compound inequality

[David Arnold]

Aditya,

Thanks, and I am getting this to work, which is similar to the way  
the align macros from the AMS work:

\placeformula[eq:twosolve]
\startformula
   \startalign[m=3]
     3-2x&>-1 &&\qor& 3-2x&<1\\
      -2x&>-4 &&&      -2x&<-2\\
        x&<2  &&&        x&>1
   \stopalign
\stopformula


On Jan 20, 2006, at 10:07 PM, Aditya Mahajan wrote:

> <--- On Jan 20, David Arnold wrote --->
>
>> All,
>>
>> I have:
>>
>> \placeformula[-]
>> \startformula
>> \startalign[m=2]
>>   3-2x&<-1 & 3-2x&>1\\
>>    -2x&<-4 &  -2x&>-2\\
>>      x&>2  &    x&<1
>> \stopalign
>> \stopformula
>>
>> And it works. However, I want to sqeeze the word "or" between the  
>> inequalities on the first row so that it reads:
>>
>> 3 - 2x < -1  or  3 - 2x > 1
>>
>> How can I do this?
>
> This is how I would do this,
>
> \startformula \startalign[n=5,align={right,left,middle,right,left}]
>  3 - 2x & < -1 & \quad \text{or} \quad & 3-2x & > 1 \\
>  -2x < & -4 & \text{or} & -2x &> -2 \\
> \stopalign \stopformula
>
>
> -- 
> Aditya Mahajan, EECS Systems, University of Michigan
> http://www.eecs.umich.edu/~adityam || Ph: 7342624008
> _______________________________________________
> ntg-context mailing list
> ntg-context@ntg.nl
> http://www.ntg.nl/mailman/listinfo/ntg-context

Re: Align a compound inequality

[Aditya Mahajan]

<--- On Jan 20, David Arnold wrote --->

> Aditya,
>
> Thanks, and I am getting this to work, which is similar to the way the align 
> macros from the AMS work:

Keep in mind Hans comment in math-ext
    % amstex compatibility mode: (ugly)
I kinda agree. Look at the example in the source for using \NC \NC \NR 
instead of & .. \\. That gives you more flexibility in using labels 
and numbering for for specific equations.



> \placeformula[eq:twosolve]
> \startformula
> \startalign[m=3]
>   3-2x&>-1 &&\qor& 3-2x&<1\\
>    -2x&>-4 &&&      -2x&<-2\\
>      x&<2  &&&        x&>1
> \stopalign
> \stopformula
>
>
> On Jan 20, 2006, at 10:07 PM, Aditya Mahajan wrote:
>
>> <--- On Jan 20, David Arnold wrote --->
>> 
>>> All,
>>> 
>>> I have:
>>> 
>>> \placeformula[-]
>>> \startformula
>>> \startalign[m=2]
>>>  3-2x&<-1 & 3-2x&>1\\
>>>   -2x&<-4 &  -2x&>-2\\
>>>     x&>2  &    x&<1
>>> \stopalign
>>> \stopformula
>>> 
>>> And it works. However, I want to sqeeze the word "or" between the 
>>> inequalities on the first row so that it reads:
>>> 
>>> 3 - 2x < -1  or  3 - 2x > 1
>>> 
>>> How can I do this?
>> 
>> This is how I would do this,
>> 
>> \startformula \startalign[n=5,align={right,left,middle,right,left}]
>> 3 - 2x & < -1 & \quad \text{or} \quad & 3-2x & > 1 \\
>> -2x < & -4 & \text{or} & -2x &> -2 \\
>> \stopalign \stopformula
>> 
>> 
>> -- 
>> Aditya Mahajan, EECS Systems, University of Michigan
>> http://www.eecs.umich.edu/~adityam || Ph: 7342624008
>> _______________________________________________
>> ntg-context mailing list
>> ntg-context@ntg.nl
>> http://www.ntg.nl/mailman/listinfo/ntg-context
>
> _______________________________________________
> ntg-context mailing list
> ntg-context@ntg.nl
> http://www.ntg.nl/mailman/listinfo/ntg-context
>
>

-- 
Aditya Mahajan, EECS Systems, University of Michigan
http://www.eecs.umich.edu/~adityam || Ph: 7342624008