空间杆系单元的线性有限元程序，可以计算各种空间桁架结构-Space truss element linear finite element program, you can calculate a variety of space truss structure

桁架结构有限元分析的MATLAB程序，用于计算节点位移、杆轴力以及支座反力-MATLAB program for finite element analysis of truss structure，can be used for calculation of node displacment, bar axial force and support reaction force