In the paper, algorithm block diagrams are given, and results are compared with that by direct derivation method.

本文给出了两种算法的计算机程序框图，并就结果与直接求导方法进行了对比。

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On the basis of principle and struture of GM(1, 1)model, and a series of derivation and transformation, the direct model operation method from original sequence was given.

从GM（1，1）的建模原理和模型结构特征出发，通过一系列的推导、变换，给出了直接从原始序列出发求解模型的方法。

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And according to its origin, it can be divided into direct measurement parameter and the derivation parameter.

参数数量很多，按其来源可以分为直测参数和派生参数。

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