Changeset 3084

Timestamp:

2015-06-21T20:40:29-07:00 (9 years ago)

Author:

Marek Rychlik

Message:

* empty log message *

File:

• branches/f4grobner/polynomial.lisp (modified) (3 diffs)

branches/f4grobner/polynomial.lisp

@@ -294 +294 @@
 
 
-(defun poly-standard-extension (plist &aux (k (length plist)) (i 0))
+(defun standard-extension (plist &aux (k (length plist)) (i 0))
   "Calculate [U1*P1,U2*P2,...,UK*PK], where PLIST=[P1,P2,...,PK]
 is a list of polynomials. Destructively modifies PLIST elements."
@@ -306 +306 @@
         (t (monom-dimension (leading-term poly)))))
 
-(defun saturation-extension (plist 
+(defun standard-extension-1 (plist 
                              &aux 
                                (k (length plist))
@@ -312 +312 @@
                                (nvars (poly-dimension (car plist))))
   "Calculate [U1*P1-1,U2*P2-1,...,UK*PK-1], where PLIST=[P1,P2,...,PK].
-The polynomials in F are destructively modified by inserting k variables 
-at the beginning."
+Firstly, new K variables U1, U2, ..., UK, are inserted at the
+beginning of each polynomial.  Subsequently, P1, P2, ..., PK are
+destructively modified tantamount to replacing PI with UI*PI-1."
   (flet ((subtract-1 (p) 
            (append-item p (make-instance 'term :coeff -1 :dimension (+ k nvars)))))