On Wed, 2007-03-14 at 08:23 -0400, Myriam Abramson wrote:
> Could somebody please tell me what they use for the combination
> symbol? I've used plain C(n,r) but a reviewer said they did not know
> what C was. Is there something specific?
You can write it in ERT within a math environment like this:
\[ {n \choose k} \]
According to Guide to LaTeX, Kopka and Daly, 4th ed., p. 139, the
difference between doing it this way and using array structures is that
the arrays are always printed in the style and size of normal text while
the form above will have different sizes depending on context. I'm a
newbie with LyX so I have no idea how array structures play within it.
Also, Kopka and Daly state (p. 276) that the amsmath package provides
the command
\binom{over}{under}
-- Bill Wood