-
Exercise 3.1 Find the OGFs for each of the following sequences: 经过观察,这个sequence与下面的OGF最相似: 将c=2代入可得下面的sequence: 只需将此sequence左移(参考Table 3.2中的left shift)即可得到待...
-
Exercise 3.1 Find the OGFs for each of the following sequences: 这道题有两种解法,第一种可以利用上一题的OGF 另一种方法可以不借助上一题的OGF,直接求导、右移然后乘2即可
-
Exercise 3.1 Find the OGFs for each of the following sequences: 经过观察,上面sequence可由Table 3.1里的两个OGFs经过简单的相加和左移得到,稍微需要注意的是级数的下标,这是需要左移的原因。
-
Exercise 3.1 Find the OGFs for each of the following sequences: 经过观察,只有求导可以产生k的平方、三次方。在计算三次方的过程中也需要使用右移。需要注意的是待求sequence的下标是从2开始,需要左移方可...
-
Exercise 3.1 Find the OGFs for each of the following sequences: 纯手工从Sequence求OGF需要观察力(找到原始sequence)以及细心(处理下标),如果使用作者在前言中提到的符号计算系统,则可以大大简化这一过...
-
Find [z^N] for each of the following OGFs: 由OGF求coefficient有两种方法:一种是泰勒展开;另一种是由已知OGFs进行运算。 taylor series 1/(1 - 3 z)^4 SeriesCoefficient[1/(1-3z)^4, {z, 0, n}] SeriesCoef...
-
Exercise 3.9 Find the EGFs for each of the following sequences: ExponentialGeneratingFunction[2^(k+1), k, z] ExponentialGeneratingFunction[k*2^(k+1), k, z] ExponentialGeneratingFunction[(k+2)^3, k, z]
-
Exercise 3.10 Find th EGFs for 1, 3, 5, 7, ... and 0, 2, 4, 6, ...