vasp做纳米材料的结构优化后，OUTCAR中最后的原子坐标可以用这段fortran代码来执行提取。-optimization of the structure of nanomaterials vasp do, OUTCAR final atomic coordinates can be used during this fortran code to perform the extraction.

产生碳纳米管的MATLAB源程序，其结构可调，可用于纳米结构材料建模。-Produce carbon nanotubes MATLAB source, its structure is adjustable, can be used for modeling the structure of nanomaterials.