A Convex Hull is the smallest convex polygon that contains every point of the set S. A polygon P is convex if and only if, for any two points A and B inside the polygon, the line segment AB is inside P. One way to visualize a convex hull is to put

该LINGO程序的功能是：求出工程项目的收益的净现值和每道工序的最优开工时间，约束条件是紧前紧后约束，以及资源约束-The program' s function is LINGO: the project proceeds to derive the net present value of each procedure and the optimal start time constraints are tight after the former tight constraints,

变系数抛物方程 用最简显格式、紧格式、Keller盒式格式求近似解和误差 -Parabolic equations with variable coefficients were the most simple form, tight format, Keller cassette format, the approximate solution and error

MFEM is a modular parallel C++ library for finite element methods. Its goal is to enable the research and development of scalable finite element discretization and solver algorithms through general finite element abstractions, accurate and flex