Math & Science ⇒ Split a Formula

[elisamars]

Hy..I have some problem in splitting this formula..does anybody know how it should be done?

Code: Select all

\begin{equation*}
P(t,s,r)= \exp\left[\frac{1}{\alpha} (1- \exp \left(- \alpha (s-t)\right) (R(\infty)- r) -(s-t) R(\infty)- 
\frac{\rho ^2}{4 \alpha^3}(1- \exp \left(- \alpha (s-t)\right ))^2 \right]
\end{equation*}

Searching on the web I've found some good example, but I don't know why they work on my LaTeX in general, but not applied to this equation. Can someone try to split my formula?

Thanks a lot.

Elisa

[Stefan Kottwitz]

Hi Elisa,

use a multi-line equation environment of amsmath, such as align, split or multline. For example:

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\begin{multline*}
  P(t,s,r)= \exp\bigg[\frac{1}{\alpha} (1- \exp
      \left(- \alpha (s-t)\right) (R(\infty)- r) -(s-t) R(\infty)\\
  -\frac{\rho ^2}{4 \alpha^3}(1- \exp \left(-
      \alpha (s-t)\right ))^2 \bigg]
\end{multline*}

or

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\begin{equation*}
  \begin{split}
    P(t,s,r)&= \exp\bigg[\frac{1}{\alpha} (1- \exp
        \left(- \alpha (s-t)\right) (R(\infty)- r) -(s-t) R(\infty)\\
    &\quad- \frac{\rho ^2}{4 \alpha^3}(1- \exp \left(-
        \alpha (s-t)\right ))^2 \bigg]
  \end{split}
\end{equation*}

Note, matching \left and \right delimiters need to be on the same line, that's why I used \bigg[ and \bigg] instead, as the expressions spans over two lines.

Stefan

[elisamars]

Great! Thanks a lot!!