[XeTeX] Single glyphs from a font
Joel C. Salomon
joelcsalomon at gmail.com
Mon Jun 8 21:32:31 CEST 2009
Folks,
I’m trying to create this effect:
a² + b² = c² (1)
x² + y² = z² (1′)
The “old” method is, of course:
\begin{equation} \label{abc}
a^2 + b^2 = c^2
\end{equation}
\begin{equation*} \label{abc:prime} \tag{\ref*{abc}${}^\prime$}
x^2 + y^2 = z^2
\end{equation*}
This works, but it pulls in the prime character from the CM Math font.
I tried to say
\tag{\ref*{abc}′}
using the Unicode prime character [U+2032], but the text font I’m using
(Cambria) doesn’t have that glyph. I’m using Cambria Math as well, so I
tried
\tag{\ref*{abc}$′$}
but the character got ignored.
How can I get XeTeX to give me the single prime glyph from Cambria Math?
The documentation I’ve read implied I’d use fontspec and \namedglyph, or
else \XeTeXglyph, but I can’t see how to make it work.
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