Re: alignment explanation

[Mehdi Omidali <mehdioa@gmail.com>]

On 3/15/2010 8:10 PM, Aditya Mahajan wrote:
> On Mon, 15 Mar 2010, Mehdi Omidali wrote:
>
>    
>
> ConTeXt does not support that directly, but you can fake it.
>
> \def\NRtag{&\global\let\doalignNC\dodoalignNC\doalignNRtag}%
>
> \def\doalignNRtag[#1]%
>    {#1\crcr}
>
> \starttext
> \placeformula
> \startformula
> \startalign[n=3]
> \NC x^2 + y^2 \NC = z^2 \NC             \NR[eq:1]
> \NC           \NC = w^2 \NC + u^2       \NRtag[\text{(by \in{Equation}[eq:2])}]
> \NC           \NC       \NC + v^2 + r^2 \NR[eq:2]
> \NC           \NC       \NC + v^2 + r^2 \NR[eq:3]
> \NC           \NC = v^2 \NC + r^2       \NR[eq:4]
> \stopalign
> \stopformula
> \stoptext
>
> ConTeXt does support that (see above); but aligning at the + sign makes
> sense only for specific types of equations. In general, using \quad is
> considered good typography. (Imagine what would happen if the first term
> in one of the equations was very big).
>
> Aditya
>    
Thank you. It is perfect now. I think this solution deserve appearing in 
your MyWay manual. In fact, it deserves to be supported directly in MKIV.
Mehdi
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