[sage-devel] Re: octonion algebra

2008-02-25 Thread Rick
If you would like a full description of octonion algebra, I suggest you visit my web site and pull the PDF file. www.octospace.com I know nothing about Sage, can't help you there. Rick On Feb 16, 7:51 pm, Dan Christensen <[EMAIL PROTECTED]> wrote: > Eric Drechsel <[EMAIL PROTECTED]> writes: >

[sage-devel] Re: octonion algebra

2008-02-16 Thread William Stein
On Feb 16, 2008 7:51 PM, Dan Christensen <[EMAIL PROTECTED]> wrote: > I instead worked with a class that directly implemented A_n(float) > using numpy arrays, and used weave to compile some inline C code for > the multiplication operation. (Cython/Pyrex might be just as good for > this, but I'm

[sage-devel] Re: octonion algebra

2008-02-16 Thread Dan Christensen
Eric Drechsel <[EMAIL PROTECTED]> writes: > We want to compute with octonions in Sage, and discussed at our > meeting last night possibly implementing such an algebra. > > As I understand it, multiplication of octonions can be implemented on > top of the quaternions in a simple way using the Cayl

[sage-devel] Re: octonion algebra

2008-02-14 Thread William Stein
On Thu, Feb 14, 2008 at 5:56 PM, Eric Drechsel <[EMAIL PROTECTED]> wrote: > > Hi, I'm an undergrad at Portland State, where we have been learning > Sage as part of our Computer Assisted Mathematics Group. We want to I saw the blog for your group a few times when I was doing a google blog search

[sage-devel] Re: octonion algebra

2008-02-14 Thread Eric Drechsel
I just noticed this http://groups.google.com/group/sage-devel/browse_thread/thread/16fc3c4cb4020728 recent thread referencing http://wiki.sagemath.org/days7/coercion, which addresses alot of the things we had questions about. It's good to see this restructuring happening, and all the good energy