# [NTG-context] Align a compound inequality

Sat Jan 21 08:05:16 CET 2006

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

>
> 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
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>
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--
Aditya Mahajan, EECS Systems, University of Michigan