Low dimensional matrices, vectors, quaternions and a cubic equation solver

[Lars T. Kyllingstad]

BLS wrote:
> Like so many hopeful enthusiasts you are trying to bring in something. I 
> regret that I have to tell you that Phobos is a one man show.

Actually, it is more like a six- or seven-man show, and the number of 
developers is growing.


> ATM we have a situation where the compiler tries to support ideas 
> written in book not yet available for a library which exist in outer space.
> See concurrence (news group) ,container (D)

The concurrency stuff seems to be well under way.  (An incomplete 
version of) std.concurrency was included with 2.043.


> I think we can say that Phobos is a ridiculous tiny library. but in case 
> that you have a look on what is  happening outside .. a lot. This is 
> where your library will/can survive.

By posting messages like this, you're not exactly helping Phobos grow 
and gain more developers.

   Potential contributor:  "Hey, I have some code which I think
       would be useful for Phobos."

   You:  "Forget it, you'll never get it in.   Besides, Phobos sucks
       anyway, and there's no point in trying to improve it."

I mean, what are you trying to achieve with this?

-Lars


> On 15/04/2010 20:49, Gareth Charnock wrote:
>> As a side effect of my PhD project I've got a collection of mathematical
>> classes. I'd be happy to collect them together, tidy them up and donate
>> them to phobos the authors are interested in including them. Matrices
>> and vectors in particular get reinvented all the time so I'm sure users
>> of D will appreciate them being there. Quaternions are probably somewhat
>> more specialised; they are most often used for representing rotations
>> (they have different advantages and disadvantages to rotation matrices).
>> I've also written a solver for cubic equations.
>>
>> The matrix and vector classes are of the sort where the dimension is
>> known at compile time and will probably be most useful for modelling
>> geometry. High dimensional matrices and vectors are probably better left
>> to a scientific library (I remember there was talk that one might be
>> being proposed).
>>
>> Would this sort of functionality be useful for phobos? At the moment, I
>> can't promise anything, I'm just trying to judge the interest should I
>> find time to look into it.
>>
>> Gareth Charnock
>