mailing-list for TeXmacs Users

[Pierre-Henri Jondot <address@hidden>]

Hi,
.
> 
> You may actually wish to define a macro for transposition.

I don't write that many transpose matrices to make it so useful. I was a bit 
confused at first, but now it is quite fast enough, and faster than what I 
did with LaTeX, using right superscript to vphantom constructs...

> I personally don't like the French left script convention very much and
> prefer to use the 'top' symbol as a right superscript.

Both notations are available, and I'll then try to use both, but the left 
superscript is, I think, more frequent.
> 
>> - when writing a big sum with indices directly under and over, which is 
>> automatic when big centered formulas, it is a bit weird to have to hit 
>> twice the right key for the focus to go back to "normal" or maybe I should 
>> say that what is weird is what happens if you don't ! Not a big issue of 
>> course, the cursor being a good hint of what the focus is, but still 
>> something uncanny for newcomers when you go from :
> 
> We might make the cursor position just after the sum sign inaccessible
> in the presence of scripts.  Still, this might be a bit tricky.

Another thing a bit surprising to me : if the superscript is not one single 
letter but, for example : n+1, or 2*n, then the problem does not occur.

> 
>> - Something I didn't understand, but by writing this mail and 
>> experimenting at the same time, I think I just did... Sometimes I want to 
>> write the product |x| |y| with no multiplication symbol, just the space 
>> that TeXmacs puts automatically by hitting * with no alternate version. In 
>> that case, TeXmacs only enters the left part of the absolute part when I 
>> hit the | symbol, whereas usually it gives me both. I am pretty sure now 
>> it is by design, as it allows to obtain quickly the semidirect product 
>> symbol as an alternate, which makes sense, but still something to get 
>> accustomed to.
> 
> You are right that we might have to disable "* |" as a shortcut.
> It is more of a nuisance.  I did my first commit since version 2.1
> to fix this.

Actually I did not really ask for any change there, as there might be users 
who want the semi-direct product symbol (at my level of teaching next year, I 
won't, for one, but some might !), but it might help newcomers indeed.

Regards,

Pierre-Henri