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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The graying arithmetic is improved in order to pick up interest point and target easily .

对灰度化算法进行了改进，目的是较容易的提取兴趣点和目标。

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XAUST groups all data for the same element into a single container, which is compressed incrementally using a single model for an arithmetic order-4 compressor.

XAUST将同一元素的所有数据都归入单一容器，然后使用算order - 4压缩器的单个模型以递增方式压缩该容器。

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He also points out that, although British pupils are worse than their East Asian counterparts at arithmetic, they are better at higher-order mathematical skills such as geometry and handling data.

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