GCL and objects? doesn't seem to work.
(defstruct (ri (:constructor ri (lo hi)))lo hi );structure for real interval
(defmethod print-object ((a ri) stream)
(format stream "[~a,~a]" (ri-lo a)(ri-hi a)))
should make structures of type ri print like [a,b].
But doesn't. Does GCL lack CLOS?
I'm using wxmaxima 0.7.3 +maxima 5.13.0, if that matters.
RJF