OK, so I didn't put it all together because then you would have two sets of vertical bars. See, this is a vertical bar for absolute value. This is vertical bar for determinant.
我之所以没有把这些放在一起,是因为接下来你们将会得到,两个竖着的表达式,这个是绝对值,而这个是行列式。
The argument received consists of everything on the line following the vertical bar up until a vertical bar, a semi-colon or a comma. That means the argument may contain spaces.
接收的参数为紧跟在竖线后面的一行数据,到竖线、分号、逗号结束,这意味着参数可以包含很多间隔隔开。
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