# [EXT] Re: rendering brackets

Michael J. Baars mjbaars1977.tex-live at cyberfiber.eu
Wed Jul 1 07:54:04 CEST 2020

On Tue, 2020-06-23 at 16:54 +1200, Henri Menke wrote:
> On 17/06/20, 16:29, Michael J. Baars wrote:
> > Hi Philip,
> >
> > Well, you can do whatever you like with the .tex example, trow it
> > away
> > for all I care.
> >
> > I'm just trying to tell you, as a friend, that that
> > "\left(\frac{1}{a}\right)" and "\left(\frac{a}{1}\right)" are
> > rendered
> > with brackets of different size, while the brackets of
> > "\left(\frac{1}{2}\right" and "\left(\frac{2}{1}\right)" are
> > rendered
> > with brackets of the same size.
>
> It has already been pointed out that this is due to the fact that the
> number 1' is taller than the letter a'.  Here is the relevant bit
> of
> the make_fraction routine:
>
> https://github.com/TeX-Live/texlive-source/blob/35f189ca2c2866a9ed817da1db5d0bd165a3ec61/texk/web2c/tex.web#L14624-L14627
>
> The height of the resulting vlist is the height of the numerator plus
> the shift to compensate for numerator's depth and the fraction bar.
>
> Cheers, Henri

Thank you, Henri, for pointing me in the right direction. I'll have a
look at the sources when I'm ready, little busy at the moment.

Best regards,
Mischa.

>
> > That's all :)
> >
> > Best regards,
> > Mischa.
> >
> > On Tue, 2020-06-16 at 13:01 +0100, Philip Taylor wrote:
> > > Mischa, I am not sure where the misunderstanding lies, but as far
> > > as
> > > I
> > > can tell this has nothing to do with TeX Live.  You stated "as
> > > you
> > > can
> > > see from the attachment, both '1' and 'a' are first placed in
> > > boxes
> > > of
> > > the same height" and I asked "at which point in your code are
> > > both
> > > '1'
> > > and 'a' first placed in boxes of the same height  ?".  This
> > > question
> > > is
> > > purely about your coding — TeX Live is not involved in any way.
> > >
> > > Philip Taylor
> > > --------
> > > > Hi Philip,
> > > >
> > > > Have you been looking in my code? I think you should be looking
> > > > in
> > > > the
> > > > tex-live code.
> > > >
> > > > Also, perhaps you should be looking not for code that places
> > > > the
> > > > characters in a box of equal height, but for code that places
> > > > the
> > > > characters in a box of unequal height? As I pointed out right
> > > > from
> > > > the
> > > > start, I have quite some experience with .tex files but little
> > > > experience with the tex-live code.
> > > >
> > > > Best regards,
> > > > Mischa.