On 4/11/2012 6:21 AM, Richard Heck wrote:
On 04/11/2012 01:13 AM, David L. Johnson wrote:
On 04/11/2012 12:12 AM, s nedunuri wrote:
Hello, I wonder if anyone can help me with how to number multi-line
formulas, as the Help manual appears to be out of date (it refers to
menu options that no longer exist). I am running Lyx 2.0.2. I have a
multi-line formula that I created via the "Insert Matrix" command. I
would like to number each line in the formula. However, when I try
this: Edit | Math | there are two choices: Number Whole Formula or
Number This Line. However, they seem to be the same thing.

The problem is that a matrix does not really give you a multi-line
formula, it is a one-line formula including a matrix. To get a
multiline formula, use one of the aligned environments. I prefer the
eqnarray environment. Then you can number each line of the multi-line
environment. I will attach a simply LyX file showing first an eqnarray
environment, then a matrix environment, both numbered, but the matrix
only allows numbering of the whole thing.

Thanks that did the trick

The gather environment will also do, or the equation array environment,
but not, perhaps surprisingly, the multiline environment, which is
specifically intended to a single equation that spans many lines

Actually the equation array environment appears not to do individual line numbering. It has the same effect as inset matrix


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