排列数 meaning in Chinese
number of permutations
Examples
- Question of alternate permutation to educe two formula of permutation figure
由错排问题引出的两个排列数公式 - Pass the interlace series type linear differential equation that coefficient contains power function and arrangement number change into the linear differential equation of successive integral , have found out the theory and method that begs this kind of equation to know to untie . theorem have happened have given strict proof , and through example , have introduced it ' s application
摘要通过把系数含有幂函数与排列数的交错级数型线性微分方程化为可逐次积分的线性微分方程，找出了求这类方程通解的方法与理论，把所得定理给出了严格的证明，并通过实例介绍了它的应用。