Now, in order to express this kind of linear relation, we can use matrices. A matrix is just a table with Numbers in it.

现在，为了说明这种线性关系，我们可以用矩阵，矩阵就是一个含有数字的列表。

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Using this technique, a simple 10-line matrix multiply routine could expand to hundreds of lines of code that performs on the order of magnitudes better.

通过使用这种技术，10 行的矩阵相乘例程可以展开成数百行代码，性能可以提高几个数量级。

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After solving the system of linear algebraic equations, another problem is induced that requires revising this coefficient matrix in order to get a new system of equations.

在线性代数方程组已解出之后，另一个课题需要修改它的系数矩阵，从而得到一个新的方程组。

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