Math & Science ⇒ Numbered Lines in Case Differentiation

[pointeddot]

Hey guys,

I have the following problem. I have a cases environment, which works just fine, but I cannot number its lines.

Code: Select all

\[
  Q_{[i]}=
  \begin{cases}
    1; & \text{falls } p^{*}_{[i]}-p'_{[i]}>0 \\
    0; & \text{falls } p^{*}_{[i]}-p'_{[i]}=0
  \end{cases}
\]

Can you maybe help me with this?

Thank you a lot!

[localghost]

Have a look at cases or empheq. Note that with \[ … \] you have chosen an environment for unnumbered displayed equations.


Thorsten

[cgnieder]

I have the following problem. I have a cases environment, which works just fine, but I cannot number its lines.

Can you tell us what you mean by »number its lines«? Do you mean lines numbers like for a source code listing? Or equation numbering? Or something like an {enumerate} in math mode?

Regards