Hi Ikrami,
I'm sure the folks from APH will be able to comment further on this:
The "problem" with maths, at least printed maths, is that it is not a linear
arrangement of symbols. In particular:
fractions, superscripts, subscripts, radicals and embellishments, mean that
symbols are printed two-dimensionally.
Of course, in braille, and in a number of electronic representations of maths,
we linearise everything. TeX and LaTeX, for example, are popular ways to write
maths for the sighted world and it is a great starting point for translation to
other forms.
So, you will generally not find Unicode characters for the structural elements
of a mathematical expression - there are some exceptions.
I believe APH used some additional "special" characters to represent these
structural elements. I do not know the full set, but you can find some of them
in the file en-ueb-math.ctb, relating to Unified English Braille.
I do not have documentation and I don't know what produces these special
structural characters. I have not studied the file to see how complete it is.
I trust this helps.
With best regards,
James.
-----Original Message-----
From: liblouis-liblouisxml-bounce@xxxxxxxxxxxxx
[mailto:liblouis-liblouisxml-bounce@xxxxxxxxxxxxx] On Behalf Of ;
ikrami.ahmad@xxxxxxxxx
Sent: 22 April 2020 14:11
To: liblouis-liblouisxml@xxxxxxxxxxxxx
Subject: [liblouis-liblouisxml] symbols that don't have unicode values
Hi
So I am working on adding Math symbols to the Arabic tables. There are some
symbols that don't have corresponding Unicode value, specially in Geometry,
like the Ray, line segments, overlines, and the math functions like, Tan, Cos,
Log and so on. How can I add those to my table?
Thanks
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