A clear line of difference divided like a tangible fence her experience within this maze of motion from her experience without it.
她在参加舞蹈前的感受与置身于这种婆娑多姿的舞蹈中的感受是截然不同的，就像其间有一道有形的栅栏，将它们清晰地区分开来。
Divided differences
原声例句
还乡
中文百科
均差
均差（Divided differences）是递归除法过程。在数值分析中，也称差商（Difference quotient），可用于计算牛顿多项式形式的多项式插值的系数。
给定n+1个数据点
定义前向均差为：
![\begin{align}
\mathopen[y_\nu] &= y_\nu, \quad \nu \in \{ 0,\ldots,n\} \\
\mathopen[y_\nu,\ldots,y_{\nu+j}] &= \frac{[y_{\nu+1},\ldots , y_{\nu+j}] - [y_{\nu},\ldots , y_{\nu+j-1}]}{x_{\nu+jx_\nu}, \quad \nu\in\{0,\ldots,n-j\},\ j\in\{1,\ldots,n\}. \\
\end{align}](/uploads/202501/09/ec79b214019f7bdaa4cad9c377a20ab70349.png)
定义后向均差为：
![\begin{align}
\mathopen[y_\nu] &= y_{\nu},\quad \nu \in \{ 0,\ldots,n\} \\
\mathopen[y_\nu,\ldots,y_{\nu-j}] &= \frac{[y_\nu,\ldots , y_{\nu-j+1}] - [y_{\nu-1},\ldots , y_{\nu-j}]}{x_\nu - x_{\nu-j}}, \quad \nu\in\{j,\ldots,n\},\ j\in\{1,\ldots,n\}. \\
\end{align}](/uploads/202501/09/89c432e559202785cd71af125db52a600349.png)
英语百科
Divided differences 均差
In mathematics, divided differences is an algorithm, historically used for computing tables of logarithms and trigonometric functions. Charles Babbage's Difference engine, an early mechanical calculator, was designed to use this algorithm in its operation.
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