exponential generating function

短语

[计] 指数母函数

词形变化

exponential generating functions 复数 exponential generating functions

别名

EGF

释义与例句

n.
  1. 1.

    A formal power series with one indeterminate, whose coefficients are fractions with factorial denominators (of index corresponding to the power of the indeterminate) and numerators which represent a sequence of numbers that is to be studied.

    数学

    Exponential generating functions are generally more convenient than ordinary generating functions for combinatorial enumeration problems that involve labelled objects.