The midpoint between squares is reached in 90 degrees and the full circle or cycle of 360 degrees moves two full squares from its starting point.

移动90度则会碰到两个矩阵之间的中间点，从起始点开始移动两个完整矩阵则会绕完一圈，也就是360度。

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The ordinary algorithm testing includes two point product algorithm, derivative algorithm, half-cycle And integration algorithm.

普通的算法试验包括两点乘积算法、导数算法、半周积分算法。

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It is just as easy to figure 100 years or 1000 years in the future as one or two years ahead, if you have the correct starting point and know the cycle which is going to be repeated.

假如你有一个正确的起点并且知道哪一个循环将会被重复，那么你预测未来100年或者1000年就如同预测一两年以后的事情一样容易。

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Historically, around two-thirds of voters have made their decision by this point in the campaign cycle, a share that has fallen slightly over the years (to 55% in 1992).

ECONOMIST: Head to head, neck and neck