On Jun 30, 11:17?am, Dave <f... at (no spam) coo.com> wrote:
On the subject of Derive, I just sent this to ti-ca... at (no spam) ti.com. I will
post a reply if I get one.
==========
I see that TI are no longer going to sell Derive, the maths package. Is
there any chance you would release the source code under the GPL 2 or
similar license? (I say GPL 2, rather than GPL 3, since the program that
could most benefit from Derive, which is Sage, is staying GPL 2 and not
GPL 3. In any case, if released under GPL 2, anyone can use it in GPL 3
programs, but the reverse is not true).
Sage
http://www.sagemath.org/
is a pretty decent maths package which is free, but I suspect it could
benefit from some ideas from Derive.
If TI don't want to release the source code, how about making the binary
freeware, so anyone can use Derive for free?
Personally, I would not make use of a binary, as I don't use Microsoft
Windows any more than I have to. But I believe others would make use of
it, and if nothing else it would keep the prices of Mathematica and
Maple in check.
It would seem a shame to let a program stagnate if a decision has been
made not to sell it.
I expect their reply will be "we won't be releasing either the source
code or a binary, because we have been working on a successor to
Derive, the NSpire handheld and computer software".
