# [NTG-context] Align a compound inequality

David Arnold dwarnold45 at cox.net
Sat Jan 21 07:27:58 CET 2006

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