Experimental results show that the merits in the respects of interactive speed and consistent convergence can be gained, when the mixed proportional division method proposed here is applied.

试验证明，当采用所提出的“混合比例分割法”时，能同时获得快的收敛速度和良好的一致收敛性。

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At the same time, individual securities business convergence, a lack of business division in the market bad circumstances easily lead to unhealthy competition.

同时，各家证券公司业务趋同，缺乏业务分工，在行情不好的情况下容易导致恶性竞争。

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The Fourier polynomial fitting is compared with the Chebysher polynomial fitting in the division of cyclic time interval and fitting accuracy as well as convergence of function.

将本方法在周期时段划分、拟合精度、函数收敛方面与契比雪夫多项式拟合法进行了对比。

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