tortoise_gurobi_test, a BASH code which calls gurobi(), to read the LP file defining the tortoise tiling problem, solve the linear programming problem, and write the solution to a file.
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gurobi, examples which call gurobi(), which is an mathematical programming package for optimization, solving problems in linear programming, mixed integer programming, and mixed integer quadratic programming.
tortoise, a MATLAB code which considers the tortoise tiling puzzle, a smaller version of the eternity puzzle. The puzzle specifies a region R composed of 1620 30-60-90 triangles, and a set of 45 "tiles", each consisting of 36 30-60-90 triangles, and seeks an arrangement of the tiles that exactly covers the region.
tortoise_cplex_test a BASH code which calls cplex(), to read the LP file defining the tortoise tiling problem, solve the linear programming problem, and write the solution to a file.