中文说明：用matlab编写的，有限元三维梁单元的单元刚度矩阵计算程序，各节点6个自由度。
English Description：
The calculation program of element stiffness matrix of finite element three-dimensional beam element is written by MATLAB, each node has 6 degrees of freedom.
Calculation of element stiffness matrix of three dimensional beam element
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中文说明：用matlab编写的，有限元三维梁单元的单元刚度矩阵计算程序，各节点6个自由度。
English Description：
The calculation program of element stiffness matrix of finite element three-dimensional beam element is written by MATLAB, each node has 6 degrees of freedom.