"Regular expressions" are a mathematically defined concept, invented by Stephen Kleene in 1956. In their most minimalistic (and original) version, these expressions define languages using just literal ...

Abstract: This paper describes software developed by the author, that constructs a two-dimensional graphical maze and uses animation to visualize the recursive backtracking maze solution. The software ...

Abstract: In this paper, we propose a simple recursive backtracking algorithm and compare its performance against existing algorithms for a classical chessboard puzzle in recreational mathematics ...

Warranty : This software is provided "as is" without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. A handy guide of sorts for any computer ...

Emissions to the air and nutrient losses to the environment (ground water and soil) are inherent to the keeping of animals in high densities in animal houses and cause various problems to men and ...