该matlab程序为平面桁架的有限元分析程序，输入节点，单元，载荷信息就可以得到节点位移，节点荷载以及单元位移，内力，应力等结果。对刚度矩阵采用的方法是对角元乘大数法。程序注释文字清楚，准确。(The matlab program is a finite element analysis program for plane truss. The input node, element and load information can be used to get the results of n