Puzzle piece diagram - Alternating sign matrix

This puzzle piece diagram sample shows alternating sign matrix. It was designed on the base of the Wikimedia Commons file: Matrice signes alternants 4x4.svg. "An alternating sign matrix, seen as a puzzle." [commons.wikimedia.org/wiki/File:Matrice_signes_alternants_4x4.svg] "In mathematics, an alternating sign matrix is a square matrix of 0s, 1s, and −1s such that the sum of each row and column is 1 and the nonzero entries in each row and column alternate in sign. These matrices generalize permutation matrices and arise naturally when using Dodgson condensation to compute a determinant. They are also closely related to the six-vertex model with domain wall boundary conditions from statistical mechanics. They were first defined by William Mills, David Robbins, and Howard Rumsey in the former context." [Alternating sign matrix. Wikipedia] This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. [creativecommons.org/licenses/by-sa/3.0/deed.en] The marketing chart example "Puzzle piece diagram - Alternating sign matrix" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Marketing Diagrams solution from the Marketing area of ConceptDraw Solution Park.