A rather simple question, which probably will have a complex answer. I'm trying to migrate to ConTeXt, since I want to have a layout not easily achieved with LaTeX (grid...). In LaTeX, MinionPro is working fine, including the math, after some voodoo and lots of hair pulling. I haven't touched it since. Now, how to get this stuff to work in ConTeXt as well? I started with the body font, that's the easy part. I have no clue where to look for the math font, or how to port/translate the TeX stuff I have to something ConTeXt will understand. Where do I begin?

Edit: To clarify, what I currently have is

\starttypescript [serif] [minionpro]
    \definefontsynonym [Serif] [name:minionproregular] [features=default]

\starttypescript [minionpro]
    \definetypeface [minionpro] [rm] [serif] [minionpro] [default]
    \definetypeface [minionpro] [mm] [math] [minionpro] [default]

\usetypescript [minionpro]
\setupbodyfont [minionpro,10pt]

Hi, this is text. A formula: $x + y = z$.

This is obviously not enough information to make it go, it helpfully cries out with the error

error on line 14 in file tmp.tex: Math error: parameter \Umathquad\displaystyle is not set ...
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    \setupfontfamily[math][Some Math Font] should be sufficient to change the math font. Or define your own family if you don't want to change the default: \definefontfamily[myfamily][math][Some Math Font] and then \setupbodyfont[myfamily]. – Marco Dec 18 '13 at 14:36
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    Is there an opentype math font that matches minonpro? If not, then you have to create a virtual math font. – Aditya Dec 18 '13 at 15:48
  • As far as I know there isn't. For LaTeX there's a package which sets things up to work. Is there documentation somewhere about how to create such a virtual math font? Or a readable example? – Michel Dec 18 '13 at 16:12
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    @Michel: Read Section 4 of tug.org/TUGboat/tb30-2/tb95mahajan-cmath.pdf. But that article is more than 4 years old. The current organization of files is a bit different, so you will have to grep around a bit to find the exact files. For an example, see $TEXMF/tex/context/fonts/tx-math.lfg and $TEXMF/tex/context/base/type-imp-texgyre.mkiv (grep for txmath). – Aditya Dec 18 '13 at 22:49
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    You can map MnSymbol (tex.ac.uk/tex-archive/fonts/mnsymbol/otf) too if you miss something in the basic Minion OTF files. Do you know Minion Math?(typoma.com/en/fonts.html) – Hanseat Dec 20 '13 at 16:42

To use the Minion fonts in ConTeXt:

  1. Make sure that you have the fonts. Running

    mtxrun --script fonts --list --pattern="*minion*" --all 

    should give you:

    minionpro             minionprobold      MinionPro-Bold.otf
    minionprobold         minionprobold      MinionPro-Bold.otf
    minionproboldit       minionproboldit    MinionPro-BoldIt.otf
    minionprobolditalic   minionproboldit    MinionPro-BoldIt.otf
    minionproit           minionproit        MinionPro-It.otf
    minionproitalic       minionproit        MinionPro-It.otf
    minionpronormal       minionproit        MinionPro-It.otf
    minionproregular      minionproregular   MinionPro-Regular.otf
  2. The Minion fonts do not come with a accompanying math fonts. However, for simple math you can use symbols from a different math font (e.g., Pagella Math), and use letters and digits from Minion. To do so, you need a recent (2013.12.20 or newer) version of ConTeXt. Then use the following test file:

    \definefontfamily [mainface] [rm] [Minion Pro]
    \definefallbackfamily [mainface] [math] [Minion Pro] [math:lowercaseitalic] [force=yes]
    \definefallbackfamily [mainface] [math] [Minion Pro] [math:digitsnormal]    [force=yes]
    \definefontfamily     [mainface] [math] [TeX Gyre Pagella Math]
    \input ward
      c^2 = a^2 + b^2

which gives:

enter image description here

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    Doesn't work for italics in latest beta (screenshot). – Henri Menke Jul 16 '18 at 0:44
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    @HenriMenke: Hmm... I tried different combinations of range and offset, but couldn't get it to work. – Aditya Jul 16 '18 at 4:24
  • Yes, something must have changed in a recent beta. If you take a peek in the log, you'll notice that it tries to look up a, b, and c in the lowercase math italic slots (which are of course empty) rather than in the lowercase Latin slots. – Henri Menke Jul 16 '18 at 4:49

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