Math & Science ⇒ Equation splitting help.. IEEE two column two long equation

[ankitravankar]

hi can someone help me splitting this equation.
I am trying to fix this in two column format IEEE ducument but dont know how. I tried align but there are too many errors ..

Code: Select all

\begin{align}
Bel(\mathbf{m}_k^{[xy]} ) =1-
\left( 1+\frac{\mathbf{P}(\mathbf{m}_k^{[xy]}\mid \mathbf{z}_{k}, \mathbf{u}_{k-1})}{1-\mathbf{P}(\mathbf{m}_k^{[xy]}\mid \mathbf{z}_{k}, \mathbf{u}_{k-1})} \cdot \frac{1-\mathbf{P}(\mathbf{m}_k^{[xy]})}{\mathbf{P}(\mathbf{m}_k^{[xy]})} \cdot 
\frac{Bel(\mathbf{m}_{k-1}^{[xy]} )}{1-Bel(\mathbf{m}_{k-1}^{[xy]} )}\right)^{-1} 
\end{align}

[Stefan Kottwitz]

I am trying to fix this in two column format IEEE

Instead of only describing circumstances, please post a complete minimal working example. This can be as simple as adding \documentclass{IEEEtran} and some lines copied from your original document, including \end{document}. So we really know what to deal with.

I tried align but there are too many errors

If you get errors, post the errors and the code which caused it. Otherwise it's hard to guess what happened on your computer.

Well, you posted some code, so I help to split it. You could use the split environment of amsmath, similar to align, within an equation environment. Instead of \left( and \right) use \Bigg( and \Bigg), since the auto-sizing delimiters cannot be used across lines.

Want to see the concrete code? Remember what I said above regarding just descriptions?

Here it is:

Code: Select all

\begin{equation}
  \begin{split}
  Bel(\mathbf{m}_k^{[xy]} )
    &= 1 - \Bigg( 1+\frac{\mathbf{P}(\mathbf{m}_k^{[xy]}\mid \mathbf{z}_{k},
       \mathbf{u}_{k-1})}{1-\mathbf{P}(\mathbf{m}_k^{[xy]}\mid \mathbf{z}_{k},
       \mathbf{u}_{k-1})} \\
    &  \quad \cdot \frac{1-\mathbf{P}(\mathbf{m}_k^{[xy]})}{\mathbf{P}
       (\mathbf{m}_k^{[xy]})} \cdot \frac{Bel(\mathbf{m}_{k-1}^{[xy]} )}
       {1-Bel(\mathbf{m}_{k-1}^{[xy]} )}\Bigg)^{-1}
  \end{split}
\end{equation}

Try to keep your equations readable, insert as much spaces as you want, the math mode doesn't care about more spaces. This is better for seeing the structure and locating problems, for you and readers in the forum.

Stefan