منابع مشابه
The Site Perimeter of Bargraphs
The site perimeter enumeration of polyominoes that are both columnand row-convex is a well-understood problem that always yields algebraic generating functions. Counting more general families of polyominoes is a far more difficult problem. Here Mireille BousquetMélou and Andrew Rechnitzer enumerate (by their site perimeter) the simplest family of polyominoes that are not fully convex—bargraphs....
متن کاملThe perimeter in site directed percolation. Mean perimeter expansions
2014 Exact expansions for susceptibility 2014 like mean perimeter series for directed percolation and extended mean size series are analysed, on two and three dimensional lattices. The critical threshold pc estimates are refined for the triangular and simple cubic lattices. On the square next-nearest-neighbour site problem pc is estimated as pc = 0.4965 ± 0.002. J. Physique 47 (1986) 943-946 JU...
متن کامل----observe Bargraphs and Trending
A graphical interactive software training system as disclosed comprising a host computer sub-system operatively connected to a graphic computer sub-system providing training courses for use by a human operator. The training system functions without reference to a control program. It includes a series of stand-alone and isolated pictures having command functions embedded thereon requiring · an i...
متن کاملOn The Perimeter of an Ellipse
Let E be the ellipse with major and minor radii a and b respectively, and Pbe its perimeter, then P = lim 4 tan(p/n)(a + b + 2) Σ a2 cos2 (2k-2)Pi/n+ sin2 (2k-2)Pi/n; where n = 2m. So without considering the limit, it gives a reasonable approxi-mation for P, it means that we can choose n large enough such that the amountof error be less than any given small number. On the other hand, the form...
متن کاملPolyiamonds and Polyhexes with Minimum Site-Perimeter and Achievement Games
An animal is an edge connected set of nitely many cells of a regular tiling of the plane. The site-perimeter of an animal is the number of empty cells connected to the animal by an edge. The minimum site-perimeter with a given cell size is found for animals on the triangular and hexagonal grid. The formulas are used to show the e ectiveness of a simple random strategy in full set animal achieve...
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ژورنال
عنوان ژورنال: Advances in Applied Mathematics
سال: 2003
ISSN: 0196-8858
DOI: 10.1016/s0196-8858(02)00553-5