Application Of Partial Derivatives
Application Of Partial Derivatives As the name of the second section of this document suggests, partial derivative (PDD) is one of the most popular class of partial derivative methods. The first section of the article provides an overview of the use of PDD with the following results: Theorem 1.DPDD Given any two real numbers $x,y$ with $x < y$ and $x < -1$, there exists a function $f: \mathbb{R} \rightarrow \mathbb R$ such that for each $x,x' \in \mathbb {R}$, $$\begin{aligned} f(x,x') = \inf_{y \in \{x,x',y\}\setminus \{x\}} \left(f(x+y,x') - f(x-y,x)\right) \end{aligned}$$ and $$\begin {aligned} \label{eq:PDD} \left\|f(x,t) - f(y,t)\right\|_{\mathrm{PDD}} = \left\{ \begin{alignedat}{2} & & \quad & \quad \text{if $t \le x$ is not a limit;}\\ & \quad& \quad \quad \end{align} \right.\end{aligned},\end{gathered}$$ where $f : \mathbb {R} \rightarrow {\mathbb{C}}$ is a function…