Re: A few questions about aligned maths

[Aditya Mahajan <adityam@umich.edu>]

On Thu, 13 Mar 2008, Morgan Brassel wrote:

>
> Hi everyone,
>
> I read carefully the two 'My Way' from Aditya regarding math alignment 
> (thank you for those, they were extremely useful to me, and should maybe 
> get even more visibility on the wiki), and I have some questions about 
> it:
>
>
> 1) Is there a way to modify interline spacing in 'cases' environment? I
> find it a bit short when using the displaystyle option.

There is no clean way to do this at the moment. You can force a looser 
interline by adding \noalign{\vskip ...} after \NR.

> 2) I noticed that the interline spacing is not the same in the 'align' and
> 'aligned' environment (it's larger in 'align'). Is there a way to make
> 'aligned' use the spacing of align? It looks better with displaystyle
> maths.

I do not like the definition of aligned using matrices that I have 
presented in the 'My Way'. Matrices try very hard to have a compact 
interline spacing, while in a aligned environment you need the opposite. 
At some point, I played with some of the internals of core-mat, and had 
a working definition of aligned. I cannot find it at the moment :(

> 3) Aditya, I saw your remark in your 'My Way' concerning the 'multline'
> environment. I must admit I would really be glad to see it appear in
> ConTeXt! I'm afraid I'm not able to implement it myself... I use it a
> lot with amsmath: when a formula is just too long for one line, I put it
> on two with multline. The first part of the formula is left aligned on the
> first line, and the second part is right aligned on the second line. It seems
> impossible to get the same result with only 'align'. Would it be difficult
> to make it available in ConTeXt?

No, multline is probably the simplest of all math environments. I do not 
really understand what all features it should have. If you can explain 
everything you want from a multiline environment, I can give a shot at 
trying to implement that, and Hans and Taco could polish it up.

Aditya
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