组合数学方法推引原子谱项（Ⅳ）展开计数母函数的程序设计

ATOMIC TERMS DERIVED BY COMBINATORICS (Ⅳ) Program Design of Finite Expansion of Counting Generating Function

讨论了推引原子谱项的组合数学方法中的程序设计原理，通过数组元素的运算，实现了该法计数母函数的多项式展开，编制了从分式到多项式展开式的ＢＡＳＩＣ程序。

The program design principle of the combinatorial method deriving atomic terms is discussed. The polynomial expansion of the counting generating function is realized by the calculation of array elements and a BASIC program of the expansion is developed.