... Coefficient matrix (系数矩阵): 1.23 Elementary row operations (基本列运算): Row equivalent (列等价): Two matrices are said to be row equivalent if one can be obtained from the other by a finite sequence of above element...
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If the step does not take a table as input, such as this example, then the syntax is equivalent to a table with a single row.
如果步骤没有使用表作为输入，例如本例，那么语法上等同于只使用了单行的表。
Enough new wind power was installed in the United States to serve the equivalent of 4.5 million households in 2007, the third year in a row the country led all nations in new wind power.
相当数量新的风能设备而在美国安装起来，它们将为和2007年450万户家庭相当的家庭提供服务，这是连续第三年这个国家在全国范围内开发利用风能。
Note that for a DAG represented in Matrix, shifting position of entire row or entire column still makes the representation equivalent.
注意，一个DAG表示为矩阵，移位置的整行或整列仍然是等效的表示。
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