Abstract: Signal transformation is a mathematical tool commonly applied in signal processing. It maps a mathematical function or a physical signal from one domain into another to reveal information ...

Abstract: In heterogeneous wireless networks, an important task for mobile terminals is to select the best network for various communications at any time anywhere, usually called network selection. In ...

利用函数$f$在某点$x_0$处的**信息（们）**，**描述**该函数在该点**附近的取值**。 ### 基本形式 $$f(x) \approx f(x_0) + f^{\prime}(x_0)(x ...

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