In the numerical simulation of injection molding, FEM is used to analyze the process of flow, packing and warpage, which finally come down to the solution of sparse linear equation.

• 本文基于有限元方程组系数矩阵的稀疏性、对称性等特性，采用了链表式存储结构，最大限度地节约了存储空间，提高了求解效率。