basic linear algebra computations



Barton Willis wrote (on Wed, 4 May 2005 at 19:09 -0500):

> (3) My code requires the emptyp function from nset. It
> seems that there is another emptyp function defined
> elsewhere in maxima (ick). I'll look into that.

The other definition is in powers.lisp:

;; emptyp(e) returns true iff e is an empty Maxima list. This function 
;; is identical to is(e = []).  This function isn't used by any functions 
;; in powers; it could be expunged.

(defun $emptyp (e)
  (like e '((mlist))))

So it is almost like the one in nset, but only for lists, not for
sets.

As the commetn describes it could (and should) be expunged from
powers.lisp.

'Andreas
-- 
Wherever I lay my .emacs, there's my $HOME.