Gerdes, Paulus From Liki-designs to cycle matrices: The discovery of attractive new symmetries. (English) Zbl 0989.01002 Vis. Math. 4, No. 1, no pag. (2002). From the text: In the final part of Geometry from Africa (1999) I explained how I discovered Lunda-designs in the context of analyzing mathematical aspects of traditional “sona” pictograms from Angola and then I presented briefly some properties and generalizations of Lunda-designs. In one of the chapters of my forthcoming book “The beautiful geometry and linear algebra of Lunda-designs” I explain in detail how experimentation with Liki-designs, a particular class of Lunda-designs, led me to the discovery of cycle matrices. The present paper gives an overview. MSC: 01A07 Ethnomathematics (general) PDFBibTeX XMLCite \textit{P. Gerdes}, Vis. Math. 4, No. 1, html document (2002; Zbl 0989.01002) Full Text: Link