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。

youdao

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。

youdao

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。

youdao