By applying the method of successive difference to a sequence of numbers,an equal-ratio se-quence is obtained after several order differences.This sequence is also called the equal-ratio sequence of higher order differences.In this paper,the general term and the formula of the sum of the preceding term of the equal-ratio sequence of higher order differences are obtained by using the method of matrix only,thus solving the problem of summing the general term and the preceding term of the equal-ratio sequence of higher order differences.
关键词
逐差法/高阶差等比数列/差分法
Key words
successive difference/high order differences/difference method