1. present participle of alternate#English|alternate

alternating (not comparable)

  1. That alternates.
  2. (mathematics, of a knot) Having a planar diagram whose crossings alternate between "over" and "under" as one travels along the knot.
  3. (mathematics, of a series) Having terms that alternate between positive and negative.
  4. (mathematics, of a multilinear mapping with all arguments belonging to the same space) Whose value is zero when any two adjacent arguments are equal.

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