第一类方法称为静态方法，主要包括截断奇异值分解(TSVD)方法和截断完全最小二乘(TTLS)方法。

The first class of regular method is named stationary method which include two methods, truncated singular value decomposition (TSVD) method and truncated total least squares (TTLS) method.

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你完全没有必要担心库的稳定性，因为我是使用反射对父类进行最小限度的修改。

You no need to worry about stability. Because I minimise modifying by reflecting.

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