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Changeset 1998


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Timestamp:
2015-06-16T14:34:12-07:00 (9 years ago)
Author:
Marek Rychlik
Message:

* empty log message *

File:
1 edited

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  • branches/f4grobner/pol.lisp

    r1997 r1998  
    2323;;
    2424;; Polynomials implemented in CLOS
     25;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
     26;;
     27;; A polynomial is an collection of terms. A
     28;; term has a monomial and a coefficient.
     29;;
     30;; A polynomial can be represented by an s-expp
     31;; (EXPR . VARS) where EXPR is an arithmetical formula
     32;; recursively built of the arithmetical operations,
     33;; and VARS are the variables of the polynomial.
     34;; If a subtree of this s-exp is not an arithmetical
     35;; operator +, -, *, expt, and is not a member
     36;; of VARS then it represents a scalar expression
     37;; which the Lisp reader must know how to convert
     38;; into an object for which can be multiplied by a variable,
     39;; subject to commutativity and associativity rules.
     40;;
    2541;;
    2642;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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