The serial "Mathemagic paintings" is published in the book "Martina Schettina - Mathemagische Bilder" Vernissage Verlag 2009. The diagonals divide each other in the golden ratio..
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{{Information |Description={{en|1="Pentagramm" by Martina Schettina. Acrylic Painting on canvas 2009, 50 x 50 cm.}} {{de|1="Penagramm" von Martina Schettina 2009. Acryl auf Leinwand, 50 x 50 cm.}} |Source={{own}} |Author=Marinelli Kunst