vector



From The Collaborative International Dictionary of English v.0.48:


Vector \Vec"tor\, n. [L., a bearer, carrier. fr. vehere, vectum,
   to carry.]
   1. Same as Radius vector.
      [1913 Webster]

   2. (Math.) A directed quantity, as a straight line, a force,
      or a velocity. Vectors are said to be equal when their
      directions are the same and their magnitudes equal. Cf.
      Scalar.
      [1913 Webster]

   Note: In a triangle, either side is the vector sum of the
         other two sides taken in proper order; the process
         finding the vector sum of two or more vectors is vector
         addition (see under Addition).
         [1913 Webster]














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