# How exactly is spacing in and around a multiline math environment determined?

I've tried reading various sources (in particular Tex By Topic; I don't have a copy of the TeXBook) and experimenting on my own, but I'm still unclear as to how exactly the line spacing in and around a multiline math environment is determined by the parameters

• `\abovedisplayskip`, `\belowdisplayskip`, `\shortabovedisplayskip`, `\shortdisplayskip`
• `\lineskip`, `\lineskiplimit`
• `\jot`

Can someone explain exactly how the skips are computed? (Ideally it should include a description of what happens if one or more of these parameters is made negative.)

I'm especially interested in `\lineskip` and `\lineskiplimit`, since I've seen some strange results from playing with these.

For a MWE, see the example given in Set a minimum space above and below displayed math

Replay

Category: math mode Time: 2014-07-06 Views: 0