介绍采用引用计数、操作标志等方法实现矩阵复制、转置、乘常数等部分矩阵运算。
Then the methods of the adoption to quote from to count, operating the marking etc are introduced.
引用石墨经验力常数计算碳纳米管声子色散关系时 ，必须处理由二维平面卷曲形成三维实体纳米管所引入的问题 。
Based on the force constant model we calculate the phonon dispersion relations of single wall BC_3 nanotubes with different diameters and chiralities.
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