摘要
通过三段迭代的方式构造出一类母函数.利用此方法,可以得到(1+x+x^2+x^3+x^4+x^5+x^6)~n的展开式中任一项的系数,最后用2个例子演示了如何利用三段迭法求出母函数和分布律.
By means of three steps iteration method, a class of generating functions has been con- structed. By this method, the coefficients of any item in the expansion of ( 1 + x + x^2 + x^3 +x^4+ x5 +x6) n can be obtained. Finally, two examples were given to show how to obtain the generating function and the distribution law by using the three steps iteration method.
作者
颜宁生
YAN Ning-sheng(Department of Fundamental Courses, Beijing Institute of Fashion Technology, Beijing 100029, China)
出处
《北京服装学院学报(自然科学版)》
CAS
北大核心
2017年第4期89-94,共6页
Journal of Beijing Institute of Fashion Technology:Natural Science Edition
关键词
母函数
迭代法
分布律
generating function
iterative method
distribution law