We first introduce methods of finding the sum of the first n terms for an arithmetic sequence of higher order.

我们首先介绍了高阶等差数列前n项和的求解方法。

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For example, if the complexity order of the current technique is O(n**2), speeding up the steps by 10x is a lot less helpful than finding an O(n) substitute.

例如，如果当前技术的复杂性等级是O(n**2)，那么将这些步骤加速10倍远不及寻找 O(n) 替代品来得有用。

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N on linear calibration and finding circle edge were introduced to measure the images acquired.

系统选用背光源照明，采用非线性校准及查找圆边的方法对采集到的图像进行测量。

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We first introduce three methods of finding the sum of the first n terms for an arithmetic sequence of higher order, and then display another method by some formal derivatives of which are defined.

首先，简要介绍了三种主要的求和方法。然后，根据高阶等差数列通项的特性，利用新定义的形式导数列对其进行了有效的探讨。

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We first introduce three methods of finding the sum of the first n terms for an arithmetic sequence of higher order, and then display another method by some formal derivatives of which are defined.

首先，简要介绍了三种主要的求和方法。然后，根据高阶等差数列通项的特性，利用新定义的形式导数列对其进行了有效的探讨。

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