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Constructability of Trip-lets
A trip-let is an object as shown on the cover of Hofstadter’s book Gödel, Escher, Bach: a solid, threedimensional object that, when viewed from three orthogonal directions, shows three different letters. In this paper we consider two problems related to the construction of such objects for a given set of three letters. First, we want to know whether the silhouettes of the object correspond to t...
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ژورنال
عنوان ژورنال: Structure
سال: 2003
ISSN: 0969-2126
DOI: 10.1016/j.str.2003.10.006