Henri,

Thanks for the suggestion. I tried to add the additional fonts, but this
did not seem to make a difference. The math equations render fine, but a
search performed for terms in an equation still does not work when I
specify the font. When I remove the font specification, it works fine.
There must be some difference in the font that is used even if I don't
specify a math font. Any other thoughts about why the math font changes or
how to get a math font that is searchable, or get back to the default math
font?

-Lance


------------------------------
>
> Message: 4
> Date: Fri, 18 May 2018 18:55:14 +1200
> From: Henri Menke <henrimenke@gmail.com>
> To: ntg-context@ntg.nl
> Subject: Re: [NTG-context] Fonts and equations
> Message-ID: <12743277-ebd0-67c7-2393-fe33e97bfaac@gmail.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
>
>
> On 17/05/18 23:19, Lance Larsen wrote:
> > I have a context document with several equations. One really nice
> > feature with equations is that by default you can search for variable
> > names in equation in a PDF reader like acrobat. However, I needed to
> > configure the document to use arial for the text. Once I do this, the
> > equations are no longer searchable. I assume something happened to the
> > mathematics font. How to I change the font for the document text, but
> > keep the math equations searchable? Is there a way to change the
> > document font, but not affect the math font? Here is a sample of how I
> > configured the font. The equations are no longer searchable.
> >
> > % Load the Arial font values for regular, italics, bold, etc.
> > \starttypescript [serif] [arial]
> >    \definefontsynonym [Serif]               [name:arial]
> >    \definefontsynonym [SerifBold]           [name:arialbold]
> >    \definefontsynonym [SerifItalic]         [name:arialitalic]
> >    \definefontsynonym [SerifSlanted]        [name:arialitalic]
> >    \definefontsynonym [SerifBoldItalic]     [name:arialbolditalic]
> >    \definefontsynonym [SerifBoldSlanted]    [name:arialbolditalic]
> >    \definefontsynonym [SerifCaps]           [name:arial]
> > \stoptypescript
> >
> > % Now we define the 'arial' font as an available option
> > \definetypeface [arial]    [rm] [serif] [arial]
>
> The typeface "arial" you defined has no math font (and no sans and no
> mono font).  Add those and you should be fine:
>
> \definetypeface [arial] [rm] [serif] [arial]
> \definetypeface [arial] [ss] [sans]  [modern]
> \definetypeface [arial] [tt] [mono]  [modern]
> \definetypeface [arial] [mm] [math]  [modern]
>
> >
> > % Set 'arial' 10pt as the default font for the document
> > \setupbodyfont [arial,rm,10pt]
> >
> > \starttext
> >
> > $z_1 = x_1 + y_1$
> >
> > $a = b + c$
> >
> > \stoptext
> >
>