Working with Latex under Emacs

• 1. When things go wrong running C-c C-c to generate *.bbl from *.bib.
• 2. The correct way to insert newlines in a section of text, not a paragraph.
• 3. Why do you sometimes encounter the WARNING underfull \hbox?

I admit emacs is smart enough to do what is supposed to do in a latex buffer, but sometimes things may get more complicated than emacs itself can resolve, so it is necessary to help emacs a little. The problem is that when I run C-c C-c to a latex buffer, it failed to generate the *.aux and *.bbl files, which are used for bib, the way to solve this problem is to run the following commands manually:

Line break accepts optional argument in brackets, whirs tells the vertical length to separate:

This problem has something to do with the inter-word space of one line, when all the words in the line can not be cut properly, latex will complain about, so re-word the sentence can always solve the problem. By the way, latex can still produce the correct document if you ignore the warning.