On Thu, Apr 8, 2010 at 10:37 AM, Mikael Persson <mic...@gmail.com> wrote: > On Thu, Apr 8, 2010 at 10:31 AM, Hans Hagen <pra...@wxs.nl> wrote: >> On 8-4-2010 7:40, Mikael Persson wrote: >> >>> Ok Hans, with the beta from yesterday the absolute values change size, >>> but there are some problems still: >>> >>> 1) The absolute value bars are not just "straight lines" when using >>> \big and friends, but som kind of line that is thicker in the middle. >>> (zoom i on attached pdf) >> >> this is because lm has no such characters so they are made from the smaller >> ones (extensible characters) >> >> in traditional lm this can go unniticed (depends a bit in the exact >> definition but in mkii you will see two stacked | just not touching but in >> mkiv we use overlap - which is custom in opentype anyway); so what you >> observe is an artefact of the viewer - it might be that future versions of >> luatex deal better with this as it relates somewhat with how things are >> dealt with in the backend but you will observe similar effects in pdftex >> >> in an earlier version i used rules but then found out that the | has round >> tops (ok, i could use pdf literals to draw lines but not today) >> >>> 2) The horizontal spacing in the \big version seems to be bigger than >>> for the \bigl/\bigr version (and similar for \Big vs \Bigl/\Bigr). I'd >>> expect the same spacing (the l and r are just there for the writer to >>> easily see what is left and what is right). >> >> repaired .. (i also added \plainbigmathmode >> >>> 3) I'd expect that \| gives double bars, like the || one get from >>> \Vert and not |. This is not so (see the attached file). Moreover, it >>> is not possible to do \bigl\Vert right now to get a bigger ||. >> >> i've added double bars so this works: >> >> $\biggl\Vert x^n\biggr\Vert$ >> $\biggl{||} x^n\biggr{||}$ >> $\biggl|\biggl| x^n\biggr|\biggr|$ >> >> there will be a new beta later today or tomorrow >> >> Hans
Thanks for you answer and explanation. Is there a reason why you do not add \| to get double bars? This is the way it is done in LaTeX (OK, not really an argument). I'm just curious. Mikael ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________