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Re: Overline kind of accent


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  • From: Alexandre Danescu <address@hidden>
  • To: address@hidden
  • Subject: Re: Overline kind of accent
  • Date: Tue, 26 Oct 2021 11:46:08 +0200

Hi Pierre-Henri,

I confirm the behaviour you explain when using \overline.

I think the problem can be solved by using the "wide bar" in the "Insert/Accent above" menu... it seems to me that it does what you want.

Best regards,

Alexandre

Le 26/10/2021 à 11:28, Pierre-Henri Jondot a écrit :
Hi everyone,
I am trying to obtain a line over a matrix or vector name to mean the conjugate of all its coefficients.
The default extending line over an _expression_ I don't like. For uppercase letters, it is too small :
Furthermore, the chosen size (as it is an extending accent) is sometimes a bit surprising, as I get this  or that :
while I would expect both to look similar. (Yes, I get that this n is a tiny bit larger than the 1 above, but still, it is so dissimilar as it looks weird)

Luckily, the LaTeX command \overline looks better, and I prefer the line I get over an uppercase letter, such as 
 (although maybe it extends a bit too much on the right, but it is still better to my eyes)

It is a bit more cumbersome to write, but the problem is that I don't know how to exit from the overlined part once I use this accent, so when I want to enter this product (again, in this example, the line over the first X is, to my eyes, a bit too small)

using \overline, I tried this :
typing \overline then Enter, then X then right arrow to exit the overline environment (hopefully) then ^, then T (looks fine so far) then right arrow again to exit the exponent, and then the line extends over the exponent too, and I can't exit the overline, even after exiting the formula itself (which looks like a bug to me)

It is even worse in a demo environment where if I do the same thing, that is, in a formula, \overline enter X right arrow then I get this with the line extending to the right margin :

So the first question is : how would I manage the kind of result I'd like ? 

And the second would be : Am I right that \overline is kind of buggy with TeXmacs right now ?

And if it is not a bug, how would one properly use the hybrid latex command \overline ?

Hopefully the images I pasted in this mail will show properly. I remember last time Joris told me they didn't, so I tried to compose this mail using gmail web client.

Regards,

Pierre-Henri

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