Parker square

English Etymology en Noun A radially symmetric Latin square. en 2004 Mathematical Reviews 8484 The use of Parker squares in the construction of sets of mutually orthogonal Latin squares is then examined. en 2004 European Journal of Combinatorics Diagonally cyclic latin squares Ian M. Wanless 25 3 A main class will contain a certain type of Parker square if and only if each square in the class is isotopic to a Parker square of that type. en 2015 Latin Squares and their Applications A. Donald Keedwell; József Dénes 287 0444635580 Thus, Parker squares of different types may lie in the same isomorphism class and, a fortiori, in the same isotopism or main class of latin squares. en eponyms