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Autor/in | Vajda, S. |
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Titel | Plane and Coloured |
Quelle | (1969)Infoseite zur Zeitschrift |
Dokumenttyp | gedruckt; Zeitschriftenaufsatz |
Schlagwörter | Geometric Concepts; Mathematical Concepts; Mathematical Enrichment; Mathematics; Modern Mathematics; Networks; Resource Materials; Secondary School Mathematics; Topology |
Abstract | Discussed are some applications of Euler's Formula N plus F minus E equals Z, where N, F, and E are respectively the number of vertices, faces, and edges of a planar figure. In particular, the Four-Color Problem is proved for the special case of five countries. (CT) |
Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
Update | 2004/1/01 |