On Mon, Apr 14, 2008 at 3:35 PM, Jukka Zitting <[EMAIL PROTECTED]> wrote:
> Hi,
>
>
> On Mon, Apr 14, 2008 at 9:27 PM, Luc Maisonobe <[EMAIL PROTECTED]> wrote:
> > Derivatives are computed by applying the classical exact differentiation
> > rules ((f*g)' = f'*g + f*g' and friends) and by using t
Hi,
On Mon, Apr 14, 2008 at 9:27 PM, Luc Maisonobe <[EMAIL PROTECTED]> wrote:
> Derivatives are computed by applying the classical exact differentiation
> rules ((f*g)' = f'*g + f*g' and friends) and by using the exact derivatives
> of all Math and StrictMath methods (including acosh, asinh and at
Rory Winston a écrit :
Hi Luc
I'm a bit confused about the purpose of [nabla]. You say you outline
three methods of computing the derivative of the function you outlined.
However in reality I think you have only described two. Unless I am
missing the point of your example, your idea is basic
On 4/14/08, Luc Maisonobe <[EMAIL PROTECTED]> wrote:
> James Carman a écrit :
> > On Mon, Apr 14, 2008 at 5:27 AM, Jukka Zitting <[EMAIL PROTECTED]>
> wrote:
> >
> > > I share the concern. It doesn't seem obvious that the derivatives of
> > > the byte code operations would produce a computational
Hi Luc
I'm a bit confused about the purpose of [nabla]. You say you outline
three methods of computing the derivative of the function you
outlined. However in reality I think you have only described two.
Unless I am missing the point of your example, your idea is basically
performing sym
James Carman a écrit :
On Mon, Apr 14, 2008 at 5:27 AM, Jukka Zitting <[EMAIL PROTECTED]> wrote:
I share the concern. It doesn't seem obvious that the derivatives of
the byte code operations would produce a computationally accurate
derivative of the source function. Other than that the idea i
Are you talking about http://en.wikipedia.org/wiki/NAMBLA* :-O*
James Carman wrote:
On Mon, Apr 14, 2008 at 8:31 AM, Paul Libbrecht <[EMAIL PROTECTED]> wrote:
Le 14 avr. 08 à 12:52, James Carman a écrit :
Also, the name "nabla" would suggest that the component is designed
for
Paul Libbrecht a écrit :
I would agree with Phil,
as long as Math is not modularized (which turned out to be quite a
hassle for jelly but probably pays on the long run, especially now that
maven 1.1 handles reactor cleanly) Nabla should not be part of it. At
least for the dependencies, it's
Jukka Zitting wrote:
Hi,
On Sun, Apr 13, 2008 at 11:57 PM, Phil Steitz <[EMAIL PROTECTED]> wrote:
The idea is interesting and I see how it could be useful assuming it
could be made to work reliably and the
byte code <-> original function
differentiated byte code <-> analytical derivative
mappin
On Mon, Apr 14, 2008 at 8:31 AM, Paul Libbrecht <[EMAIL PROTECTED]> wrote:
>
> Le 14 avr. 08 à 12:52, James Carman a écrit :
>
>
> >
> > > Also, the name "nabla" would suggest that the component is designed
> > > for calculating derivatives of vector functions.
> > >
> >
> > The name "nabla" is
Le 14 avr. 08 à 12:52, James Carman a écrit :
Also, the name "nabla" would suggest that the component is designed
for calculating derivatives of vector functions.
The name "nabla" is also very close to "nambla" and I doubt the ASF
wants to be associated with that organization.
Nabla is als
On Mon, Apr 14, 2008 at 5:27 AM, Jukka Zitting <[EMAIL PROTECTED]> wrote:
> I share the concern. It doesn't seem obvious that the derivatives of
> the byte code operations would produce a computationally accurate
> derivative of the source function. Other than that the idea is
> interesting, an
I would agree with Phil,
as long as Math is not modularized (which turned out to be quite a
hassle for jelly but probably pays on the long run, especially now
that maven 1.1 handles reactor cleanly) Nabla should not be part of
it. At least for the dependencies, it's quite different.
Will
Hi,
On Sun, Apr 13, 2008 at 11:57 PM, Phil Steitz <[EMAIL PROTECTED]> wrote:
> The idea is interesting and I see how it could be useful assuming it
> could be made to work reliably and the
> byte code <-> original function
> differentiated byte code <-> analytical derivative
> mapping could be sho
On Mon, Apr 14, 2008 at 2:37 AM, Phil Steitz <[EMAIL PROTECTED]> wrote:
> On Sun, Apr 13, 2008 at 6:11 PM, James Carman
> <[EMAIL PROTECTED]> wrote:
> > On Sun, Apr 13, 2008 at 8:50 PM, Torsten Curdt <[EMAIL PROTECTED]> wrote:
> >
> > > Well, I am wondering if this really is a "common" need th
Well, I am wondering if this really is a "common" need that should
go into
the commons project. We already have "math".
If it doesn't fit in there it might well be better of to get it
into labs
IMO - not commons.
I would say the same could apply to many commons or commons-sandbox
compone
On Sun, Apr 13, 2008 at 6:11 PM, James Carman
<[EMAIL PROTECTED]> wrote:
> On Sun, Apr 13, 2008 at 8:50 PM, Torsten Curdt <[EMAIL PROTECTED]> wrote:
>
> > Well, I am wondering if this really is a "common" need that should go into
> > the commons project. We already have "math".
> > If it doesn'
On Sun, Apr 13, 2008 at 8:50 PM, Torsten Curdt <[EMAIL PROTECTED]> wrote:
> Well, I am wondering if this really is a "common" need that should go into
> the commons project. We already have "math".
> If it doesn't fit in there it might well be better of to get it into labs
> IMO - not commons.
>
On Sun, Apr 13, 2008 at 5:50 PM, Torsten Curdt <[EMAIL PROTECTED]> wrote:
>
> > The existing implementation is not yet ready for production. A lot of work
> has been done, but there are many missing features. [nabla] can handle
> simple functions from end to end (i.e. up to creating an instance of
The existing implementation is not yet ready for production. A lot
of work has been done, but there are many missing features. [nabla]
can handle simple functions from end to end (i.e. up to creating an
instance of the differentiated class that is fully functional).
Making this code availab
On Sun, Apr 13, 2008 at 12:22 PM, Luc Maisonobe <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I have played with an idea for a new project for a few months. Asking for a
> few advices both at the ApacheCon Europe and by direct contact, all
> responses I received were quite positive and suggested me to s
My first reaction is that I have absolutely no idea what you are talking
about. ;-)
My secondary reaction is to wonder how many people out there do understand
it, and of them, how many would contribute to its development. One of the
entry criteria, from my perspective, is some reasonable chance th
Hello,
I have played with an idea for a new project for a few months. Asking
for a few advices both at the ApacheCon Europe and by direct contact,
all responses I received were quite positive and suggested me to set up
a component in sandbox. This message is the first public announcement
and
23 matches
Mail list logo
