On 5/6/2014 4:56 PM, Sanjoy Mahajan wrote:

Thanks for the testing. I just tried it too. The live context uses MkIV 2012.05.30. It also gets a different set of fonts:

VNVCGN+LMMathSymbols10-Regular Type 1 Custom LFHPBE+LMRoman12-Regular CID Type 0C Identity-H

that's then the virtual lm unicode math (which you can still use in the latest mkiv if needed)

I still wonder whether the placement is due to the new LM Math font.

yes

-Sanjoy

"Mikael P. Sundqvist" writes:

...

I can confirm that it is too low in latest standalone. It looks OK at http://live.contextgarden.net/, though.

I can also add that \surd is way too low in latest standalone (and only a bit to low in mkiv on http://live.contextgarden.net/, and OK in mkii on http://live.contextgarden.net/).

\setuppagenumbering[location=] \starttext $\pm2$ and $\surd(1+2)$. \stoptext

/Mikael

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Hi Hans, Thanks for your attention to the issue pointed out by Sanjoy. On 6 mai 2014, at 20:14, Hans Hagen wrote:

[…] all minus' are below the baseline so consider it a feature

Yes this is the case in recent versions of mkiv, but in Plain TeX and mkii this is not the case: there the minus sign in \pm is aligned with the baseline. I agree with Sanjoy and Mikael to say that it the minus sign in \pm should be aligned with the baseline: however I don’t know if this can be easily achieved. Best regards: OK

Hans

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the + aligns on the math axis so one can argue if the type-one variant is ok ... so we would need a smaller (less height) + then which would look visually weird

Plain TeX doesn't align the plus/minus to the math axis. Rather, the minus is aligned to the baseline, and the horizontal stroke of the plus is above the baseline. I agree that it looks a bit strange with the horizontal stroke of the plus sign not aligned with the horizontal stroke of the plus/minus. Bt it looks even more jarring to have the minus below the baseline, because the baseline is such a strong visual line. I don't think I've ever the minus below the baseline in a math book, and it looks very wrong to my eye. Pagella looks worse than the others, because it has a vertical gap between the minus and the plus sign, so the depth below the baseline is even larger.

(all can be achieved ... but the idea of lm/gyre fonts is to provide an acceptable consistent set ... at some point we can think of variants - or maybe the fonts have a variant already)

I realize that it's not a ConTeXt problem, but is there a ConTeXt workaround? Or better to go to the TeX guts and compute the depth of the box, then use \raise{}? -Sanjoy

On 7 mai 2014, at 10:46, Mikael P. Sundqvist wrote:

[…]

I guess one could do this for the other signs one don't like in TeX Gyre Pagella Math…

Hi, This is a good trick to know, especially if one combines \pm and \mp as in the counter-example given by Hans: % Start example \definefallbackfamily[mainface][math][Asana Math] [range={00B1-00B1}] \definefontfamily[mainface][serif][Tex Gyre Pagella] \definefontfamily[mainface][math][Tex Gyre Pagella Math] \starttext \switchtobodyfont[pagella] Hello $ x \pm 2 = a \mp 2 $\par \switchtobodyfont[asana] Hello $ x \pm 2 = a \mp 2 $\par \switchtobodyfont[mainface] Hello $ x \pm 2 = a \mp 2 $\par \stoptext % Stop example The sample with \switchtobodyfont[asana] Hello $ x \pm 2 = a \mp 2 $\par looks quite fine. Best regards: OK