Polar and singular value decomposition of 3×3 magic squares

• Autores: Götz Trenkler, Karsten Schmidt, Dietrich Trenkler
• Localización: International journal of mathematical education in science and technology, ISSN 0020-739X, Vol. 44, Nº. 5, 2013, págs. 774-777
• Idioma: inglés
• DOI: 10.1080/0020739x.2013.790507
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• Resumen

  • In this note, we find polar as well as singular value decompositions of a 3×3 magic square, i.e. a 3×3 matrix Mwith real elements where each row, column and diagonal adds up to the magic sum sof the magic square.