[tug-summer-of-code] Some Idea - TeX and Texas instruments
zachary.r.hoffman at lawrence.edu
Mon Mar 2 15:15:05 CET 2009
Thanks for the reply. Actually, how did you reply?
> Please would you provide some links to some open source programs for
> these calculators, that might be similar to what in mind?
Certainly. Graph³, a grapher of two-variable surfaces and
differential equations, is an application of great utility that brings
handheld calculators closer in functionality to more complex computer
A Scheme interpreter for the 83+ was written in GSOC 2007. It shows
that parsing source files created on more powerful systems can and has
been done on this platform.
Summer of Code page:
DAWG (Dictionary and Word Games) was developed by Detached Solutions,
which also made Graph³. Although it is freeware and not open source,
it is a good example of something with a fairly large database.
Detached Solutions: http://detachedsolutions.com/aboutus/
> I doubt that the calculator has enough memory to run a port of TeX...
If it used a single bitmap font for the final rendering and only
supported styles for ASCII characters, then the size of glyph-related
data should be around 160 kilobytes.
The DVI file format is unoptimized for (complete) machine readability
by nature and takes away TeX-specific aspects of a document, which is
unnecessary here. Another option for document format is some
compressed form of source manuscripts, where commands are identified
by 16-bit numbers instead of their English representations.
Many macros could that are of no use on a calculator, such as those
that stray from monochrome rendering or embed active objects, need not
Displaying TeX typesets on a 96x64 LCD means that less of a document
is displayed at once, which would allow the device to render portions
of a document in less time while consuming fewer resources. Users
could still read the text with ease with a simple autoscrolling (along
text) function and could navigate the document in a view where the
width of the document is fitted to that of the screen.
All in all, how does this proposal sound? Thank you for giving it
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