persymmetric

English

Etymology

From per- +‎ symmetric.

Adjective

persymmetric (not comparable)

  1. (mathematics, of a square matrix) Such that the values on each line perpendicular to the main diagonal are the same for a given line.
  2. (mathematics, of a square matrix, now more commonly) Symmetrical about the anti-diagonal.
    Synonym: Hankel
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