In this paper a fitting decomposition method is proposed and the principles for construe - ting equations which characterize the absorbing boundary conditions is discussed for wave equation migration.

本文讨论了在波动方程偏移问题中构造吸收边界条件方程的原则，并提出了求解具有吸收边界条件的偏移问题的一种新方法——矩阵拟合分解方法。

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Algorithms for iteratively refining the parameter estimates and residuals from the fitting of a regression model using QR decomposition are described.

讨论用QR分解拟合回归方程时，参数估计和剩余的迭代加细算法。

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Through the kinetics model fitting of CH_3SCH_3 decomposition, it is considered that CH_3SCH_3 decomposition conforms to no significant radical terminations model.

通过对CH_3SCH_3降解动力学模型进行拟合，认为其降解过程符合没有自由基终止的动力学模型。

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