能够对二维桁架进行静力分析，快速求解二维桁架静力问题，适用于复杂大型二维桁架结构静力学问题(The static analysis of two-dimensional truss can be used to solve the static problem of two-dimensional truss, and it can be applied to the statics of complex and large two-dimensional truss structures.)

Arnoldi过程是各种大规模计算的一个基本程序，包括计算大规模矩阵的特征值、大规模系统的模型降阶等。(Arnoldi process is a basic algorithm in large-scale computation including eigenvalue solve of matrix and MOR.)

该程序是大型有限元ADINA的源程序代码(This program is the source code of large finite element ADINA.)