这是书籍An Introduction to Scientific Computing Twelve Computational Projects Solved with MATLAB第四章运行有限元方法求解对流扩散方程的matlab程序，标准的有限元无法得到准确解，采用了稳定化技术，具体参见书籍-This is books An the Introduction to Scientific Computing Twelve Computational Projects Solved with MATLAB in the fourth chapter to run the finite element method solving the convection diffusion equation of MATLAB, the standard finite element cannot get accurate solution, the stabilization technology, specific see books