For this to make sense, we need a must be a square matrix.
要让这个有意义，我们要使a是一个方阵。
Then, pop back to the original matrix and draw the gray square.
然后，取出原始矩阵并绘制一个灰色正方形。
At the same time, it shows that matrix addition is used to arrange magic square.
同时，利用矩阵加法构造幻方的方法，并且对它们进行程序设计，付诸实践。
A new method of matrix prediction least square is also proposed.
同时，文中还提出一种提取信号极点的矩阵预测到最小二乘法。
A new method of matrix prediction least square is also proposed.
同时，文中还提出一种提取信号极点的矩阵预测到最小二乘法。
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