За векторното пространство на магическите квадрати от трети ред (в занимателната математика)
About the Vector Space of Third Order Magic Squares (in Recreational Mathematics)

Summary/Abstract: The present paper is about magic squares and in particular about the vector space of third order magic squares. The aim is to answer some questions as: which sequence of nine numbers could be “formatted” into a magic square and how this could be done; whether the fact that the number sequence is a nine numbers arithmetic sequence is a necessary and sufficient condition for constructing a magic square; could any number be a magic square characteristic number; is there a “formula” for finding the proper numbers for constructing a magic square and so on. To answer these questions we use linear algebra elementary means for solving systems of linear equations.

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