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Changeset 2807 for branches/f4grobner


Ignore:
Timestamp:
2015-06-20T22:02:40-07:00 (10 years ago)
Author:
Marek Rychlik
Message:

* empty log message *

File:
1 edited

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  • branches/f4grobner/monom.lisp

    r2806 r2807  
    137137
    138138(defmethod multiply-by ((self monom) (other monom))
    139   (with-slots ((exponents1 exponents))
     139  (with-slots ((exponents1 exponents) (dimension1 dimension))
    140140      self
    141     (with-slots ((exponents2 exponents))
     141    (with-slots ((exponents2 exponents) (dimension2 dimension)))
    142142        other
    143       (map-into exponents1 #'+ exponents1 exponents2)))
     143        (unless (= dimension1 dimension2)
     144          (error "Incompatible dimensions: ~A and ~A.~%" dimension1 and dimension2))
     145        (map-into exponents1 #'+ exponents1 exponents2))
    144146  self)
    145147
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