Re: HP-GCC on HP39 & HP48II to be discontinued
- From: "Steen Schmidt" <sschmidt@xxxxxxxxx>
- Date: 01 Dec 2005 22:00:16 GMT
timwessman@xxxxxxxxx wrote:
> I feel bad that there aren't more using your software. It really is
> quite powerful.
[...]
> It would be fun to see someone make a cool/complicated
> game.
I wouldn't have said anything before I had something to release, but
seeing how I'm not doing any more HP programming, I can tell you what I
was preparing last;
It was to be a grayscale plotter utility sporting features like these
(all configurable):
- Real-time zoom and scroll.
- Faint grayscale grid (can be turned on/off).
- Logarithmic or linear axes.
- Singularity detection, in particular removable, jumps, poles,
essential and non-isolated singularities (avoids the vertical lines
when plotting TAN(X) for instance).
- Built-in support for the Symbtoolz replacement (which in turn
eventually would support the spec func lib).
- Save/recall of the complete global plotter environment into a single
file (to/from RAM, flash or SD) so one could resume work later. This
functionality would make it possible to share (via infrared) plot views
between calcuators in a classroom for instance. Several of such saved
environments could coexist and be toggled between by the user. Later I
was thinking of enhancing this feature into a tutor-like feature, where
two calcs could be linked via infrared, one reflecting the changes made
on the other (multi-master system).
- When plotting a truth-plot (at the moment this only support a single
function at a time), deep function analysis would be performed
initially, to eliminate the need for function evaluation at each pixel.
This sped up truth plots tremendously for most normal functions. I was
thinking about making the initial function analysis optional, to allow
the user to turn it off for ill-behaviored functions (so one doesn't
have to wait several minutes for the machine to start plotting
something :-).
And then the feature I personally liked the most (this and the
grayscale support is where I definetely needed HP-GCC - as well as for
the spec-func lib of course):
- The ability to setup a plot environment, define the detail level
(labeled roots, inflection points, singularities and what have you) and
dump it all to a .bmp or .jpg on the SD-card, in color and full
resolution (1024x768, 1600x1200 etc. - user definable) comprised of
maybe thousands of sample points (in contrast to the max 131 you can
see at any time on the calc display) to use in a report or similar.
It has been months since I stopped work on the above, and there aren't
much chance that I'll resume it even if I got a working 49G+ one day -
such projects is all about motivation, and mine is all but gone. I've
just now taken a look at the project files again, and they don't really
exite me anymore - they just look like a bunch of misspent hard work.
And now that I've written the main features of the plotter here, most
of the fun in releasing such a program is gone.
The above is the main reason why I'm so p***** at this machine -
finally a handheld with the features and the power to let you do the
above, and then the bloody keys brake from under your fingers! Kiss me
where it smells funny...
Regards
Steen
.
- References:
- HP-GCC on HP39 & HP48II to be discontinued
- From: Ingo Blank
- Re: HP-GCC on HP39 & HP48II to be discontinued
- From: timwessman
- HP-GCC on HP39 & HP48II to be discontinued
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