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Changeset 2791 for branches


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Timestamp:
2015-06-20T21:14:26-07:00 (9 years ago)
Author:
Marek Rychlik
Message:

* empty log message *

File:
1 edited

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  • branches/f4grobner/polynomial.lisp

    r2790 r2791  
    191191  self)
    192192
    193 
    194 (defun term-mul-lst (ring term1 term2)
    195   "A special version of term multiplication. Returns (LIST TERM) where
    196 TERM is the product of the terms TERM1 TERM2, or NIL when the product
    197 is 0. This definition takes care of divisors of 0 in the coefficient
    198 ring."
    199   (let ((c (r* (term-coeff term1) (term-coeff term2))))
    200     (unless (r-zerop c)
    201       (list (make-instance 'term
    202                            :monom (r* (term-monom term1) (term-monom term2))
    203                            :coeff c)))))
    204193
    205194(defun multiply-term-by-termlist (term termlist)
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