[Gretl-users] matrix updates

[Allin Cottrell]

Jack and I have been busy plugging holes, resolving anomalies, and 
documenting things, in relation to the handling of matrices in 
gretl scripts.

If you haven't checked lately, can I suggest you take a look at 
the latest English-language manuals and try things out?

http://ricardo.ecn.wfu.edu/pub/gretl/manual/en/

(For full compliance with what the manuals say, you'll need CVS 
gretl or today's Windows snapshot).

Here are some of the most recent changes/additions:

* nullspace() function to construct the right null space of a 
given matrix.

* svd() function to do the Singular Value Decomposition of a 
matrix.

* seq() function to make a row vector containing a sequence of 
integers

* mexp() function to compute matrix exponential

* matrix B = A^k: raises matrix A to the integer power k 
(previously this tried to produce a Kronecker product, rather 
oddly).

Allin.