On Dec 3, 2007 11:20 AM, William Stein <[EMAIL PROTECTED]> wrote:
[snip]
> So -- does anybody know how to raise a matrix to a power in
> Mathematica, since I sure don't.
An explanation of how to do so is here:
http://documents.wolfram.com/mathematica/Built-inFunctions/AdvancedDocumentation/Line
I've just been looking at SAGE ticket number 173:
http://www.sagemath.org:9002/sage_trac/ticket/173
The idea is that Mathematica raises a 3 dimensional matrix M over QQ
to the power 20,000 much faster than either SAGE or Magma.
I don't know any algorithm for doing this efficiently. I only know
