Question

I d like to express the following sentence (source_location is also italic, it s not correctly rendered):

Each entry has a list of tuple: < source_location, R/W, trip_counter, occurrence, killed (explained in the later) >

My current workaround for this is:

$ leftlangle
	extit{source\_location}, 	extit{R/W}, 	extit{trip\_counter},
	extit{occurrence}, 	extit{killed} 	ext{(explained in the later)}

ight
angle $

I m using 2-column paper. This < .. > is too long, but no line break because it is a math. How do I automatically (or manually) put line break in such case? It seems that leftlangle and ight angle should be in a single math. So, hard to break into multiple maths.

$<$ and $>$ would be an alternative, but I don t like it.

Answer 1

Why not define a new command:


ewcommand{	uple}[5]{$langle$	extit{#1}, 	extit{#2}, 	extit{#3}, 	extit{#4},
   	extit{#5} (explained in the latter)$
angle$}

Then use uple{sourcelocation}{R/W}{tripcounter}{occurrence}{killed}

Answer 2

LaTeX does allow inline maths to break over lines by default, but there are a number of restrictions. Specifically, in your case, using left... ight puts everything inside a non-breakable math group, so the first step is to replace them with either just plain langle... angle or perhaps igllangle...igr angle.

However, this still isn t enough to permit linebreaking; usually that s still only allowed after relations or operators, not punctuation such as the comma. (I think this is what s going on anyway; I haven t stopped to look this up.) So you want indicate where allowable line breaks may occur by writing linebreak[1] after each comma.

Depending how often you have to do this, it may be preferable to write a command to wrap your "tuples" into a nice command. In order to write this in your source:

$ mytuple{ source\_location, R/W, trip\_counter, occurrence,
    killedupshape (explained in the later) } $

here s a definition of mytuple that takes all of the above into account:

makeatletter

ewcommandmytuple[1]{%
  @tempcnta=0
  igllangle
  @for@ii:=#1do{%
    @insertbreakingcomma
    	extit{@ii}
  }%
  igr
angle
}
def@insertbreakingcomma{%
  ifnum @tempcnta = 0 else,, linebreak[1] fi
  advance@tempcnta@ne
}
makeatother

Answer 3

There seems to be a package that addresses that problem, called breqn. You can try this and let us know (I haven t used that).

Answer 4

I d use the align* environment from AMSmath. Furthermore you could just add "" to break the lines? Should work in math environments, too. Alternatively you could separate the equations.

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