Math & Science ⇒ Equation crosses the right boundary

[pallav]

How to tackle with the equation? It crosses the right boundary. Is there any way to write the equation so that it does not cross the barrier.

[Stefan Kottwitz]

If you align at the equal signs, it's a problem here, since left side and right side are too wide, together. You could use a multline environment:

Code: Select all

\begin{multline}
 \Re{\left(\left[\frac{d\lambda}{d\tau}\right]^{-2}\right)_{\lambda= i\omega \pi\rho}}
	= \Re\left[{\frac {{{\rm e}^{\lambda\tau}} \left( -2\,\lambda +A\rho \right) }{ \left( B\lambda -C \right) \lambda}}+{\frac {B}{ \left( 
		B\lambda -C \right) \lambda}}\right]_{\lambda= i\omega_0}\nonumber\\
	= \left[{\frac {\left( -CA-2\,B{\omega_0}^{2} \right) \sin \left( \omega_0\,\tau \right) + \left( -B\omega_0\,A+2\,C\omega_0 \right) \cos \left( \omega_0\,\tau
 \right) -{B}^{2}\omega_0}{ \left( {C}^{2}+{B}^{2}{\omega_0}^{2} \rho\right) \omega_0}}\right]\nonumber\\
=\frac{C^2}{\left( C^2+B^2\omega_0^2\right) \omega_0^2\rho}>0.\nonumber
\end{multline}

Stefan

[pallav]

It looks like the jpg. Some more attractive alignment is needed.

[Stefan Kottwitz]

If you would like to align at the equal signs, you need to break your wide fraction term. Otherwise, it looks better if you would use \shoveright:

Code: Select all

\begin{multline}
 \Re{\left(\left[\frac{d\lambda}{d\tau}\right]^{-2}\right)_{\lambda= i\omega \pi\rho}}
	= \Re\left[{\frac {{{\rm e}^{\lambda\tau}} \left( -2\,\lambda +A\rho \right) }{ \left( B\lambda -C \right) \lambda}}+{\frac {B}{ \left( 
		B\lambda -C \right) \lambda}}\right]_{\lambda= i\omega_0}\nonumber\\
	= \left[{\frac {\left( -CA-2\,B{\omega_0}^{2} \right) \sin \left( \omega_0\,\tau \right) + \left( -B\omega_0\,A+2\,C\omega_0 \right) \cos \left( \omega_0\,\tau
 \right) -{B}^{2}\omega_0}{ \left( {C}^{2}+{B}^{2}{\omega_0}^{2} \rho\right) \omega_0}}\right]\shoveright\nonumber\\
=\frac{C^2}{\left( C^2+B^2\omega_0^2\right) \omega_0^2\rho}>0.\nonumber
\end{multline}

Stefan