000			02173nam a22003015i 4500
001			66819
005			20210304163246.0
010			_a978-90-481-2503-6 _dcompra
090			_a66819
100			_a20150401d2009 k||y0pory50 ba
101			_aeng
102			_aNL
200			_aSerious fun with flexagons _bE-book _ea compendium and guide _fL. P. Pook
210			_aDordrecht _cSpringer Netherlands _d2009
215			_aXVI, 330 p.
225			_aSolid Mechanics and Its Applications
300			_aColocação: Online
303			_aA flexagon is a motion structure that has the appearance of a ring of hinged polygons. It can be flexed to display different pairs of faces, usually in cyclic order. Flexagons can be appreciated as toys or puzzles, as a recreational mathematics topic, and as the subject of serious mathematical study. Workable paper models of flexagons are easy to make and entertaining to manipulate. The mathematics of flexagons is complex, and how a flexagon works is not immediately obvious on examination of a paper model. Recent geometric analysis, included in the book, has improved theoretical understanding of flexagons, especially relationships between different types. This profusely illustrated book is arranged in a logical order appropriate for a textbook on the geometry of flexagons. It is written so that it can be enjoyed at both the recreational mathematics level, and at the serious mathematics level. The only prerequisite is some knowledge of elementary geometry, including properties of polygons. A feature of the book is a compendium of over 100 nets for making paper models of some of the more interesting flexagons, chosen to complement the text. These are accurately drawn and reproduced at half full size. Many of the nets have not previously been published. Instructions for assembling and manipulating the flexagons are included.
606			_954993 _aGeometria _xPoliedros modelos
606			_948023 _aRecreações matemáticas
680			_aQA448
700			_954992 _aPook _bL. P.
801			_aPT _gRPC
856			_uhttp://dx.doi.org/10.1007/978-90-481-2503-6
942			_2lcc _cF _n0