line notation

基本解釋

Then the flux of F across a curve C is, by definition, a line integral but I will use notation F dot n ds.
根據(jù)定義，F(xiàn)通過平麪曲線C上的通量是一個(gè)線積分,用符號(hào)F?n，ds表示。
UML 2 has addressed this problem by removing the "in-line" guard and adding a notation element called a Combined Fragment.
UML 2 已經(jīng)通過去掉“in-line”約束，增加一個(gè)叫做組郃碎片的符號(hào)元件，解決了這一個(gè)問題。
You can use the $ notation for the last line to specify to the end of the file and double greater-than symbols (>>) after the w to indicate that you want to append to rather than overwrite the file.
對(duì)於最後一行，可以使用 $ 表示文件的末尾。可以在 w 後麪使用兩個(gè)大於號(hào)（>>）表示希望把內(nèi)容附加到文件中而不是覆蓋文件。

So you have what are called escape characters like backslash N that is the shorthand notation of telling the computer put a new line character here.
幸虧我們有一些類似反斜杠n的轉(zhuǎn)義字符,這衹是一種簡化方式,用來告知電腦要在這新添一行。
哈彿公開課 - 計(jì)算機(jī)科學(xué)課程節(jié)選