基于Fortran编程环境的数值微分求解，如三点公式法，五点公式法，Richardson外推方法等-Fortran programming environment based on numerical differentiation to solve, such as the three-point formula, a five-point formula method, Richardson extrapolation methods

格子Boltzmann方法模拟泊肃叶刘，边界条件用费平衡态外推法-Lattice Boltzmann Method Poiseuille Liu, boundary conditions royalties equilibrium extrapolation

优化设计：外推法、黄金分割法、最速下降法，c程序-Optimization design: extrapolation method, golden section method, steepest descent method, C program