head 1.1; access; symbols; locks; strict; comment @;;; @; 1.1 date 2009.01.19.08.51.43; author marek; state Exp; branches; next ; desc @@ 1.1 log @Initial revision @ text @#| $Id: trivial.lisp,v 1.1 1997/12/12 07:24:03 marek Exp marek $ *--------------------------------------------------------------------------* | Copyright (C) 1994, Marek Rychlik (e-mail: rychlik@@math.arizona.edu) | | Department of Mathematics, University of Arizona, Tucson, AZ 85721 | | | | Everyone is permitted to copy, distribute and modify the code in this | | directory, as long as this copyright note is preserved verbatim. | *--------------------------------------------------------------------------* |# (defpackage "TRIVIAL" (:export trivial-p)) (in-package "TRIVIAL") ;; This package develops Kronecker-like algorithm to test ;; that 1 is in the ideal where fi are polynomial expressions ;; given in lisp (prefix notation) ;;Suppose we have a function f taking values f0, f1, ... , fn at ;;points x0, x1, ... , xn and we want a function which will take a value ;;f(n+1) at x(n+1); what is the formula? ;;(x-x(n+1))*f(x)+f(n+1) @