[dev-context] My way on matharrows

Mojca Miklavec mojca.miklavec.lists at gmail.com
Wed Jul 19 02:14:41 CEST 2006

On 7/19/06, Aditya Mahajan wrote:
> Hi,
>   I am attaching myway on using matharrow. Are there any suggestions
> before I release it to public?
> I found some surprises while making this my way.

Now that you're all experts in arrows: I'm still looking for
\overrightharpoonup that would:
- be small enough, so that it would still look ok when placed over
(dotless) i or j.
- decrease with style:
$\overrrightharpoonup{AB}_{\overrightharponup{CD}}$ the second arrow
should be smaller.

> 1. Somewhere along the line of development, \xrightarrow{text} changed
> to placing text at the bottom of the arrow (rather than the top as in
> amstex). This is not a bug, just something that works differently.
> Should this be changed? These arrow definitions are pretty new, so I
> do not think that a change at this stage will effect too many users.
> It may not be possible to change later for compatibility reasons.

I guess that you might even be the only one who used that so far, so
if you want compatibility, fix it now! (I never used that
functionality in LaTeX, so I don't know how it works there).

> 2. Something goes wrong with palatino (used by mag-01). Have a look at
> the \xmapsto and \xrightleftharpoons and \xleftrightharpoons in the
> pdf. \xmapsto can be corrected by changing its defintion to
> \definematharrow [xmapsto]            [3599] [\mapstofill]
> Basically, providing a bit more cusion on the left, so that the middle
> \relbar not overlap the \mapstochar.
> Should this definition go to math-ext.tex or to something specific to
> palatino. I have not tested with other fonts, but what is the general
> strategy when definitions differ for different fonts?

Taco - now that you have enough experince with cows: do you have any
suggestions about how to create nice arrows with antykwa-torunska as


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