Solving Latex Alignment Problem

[norak]

Hi guys, I want to write up some math and have the following code:

\begin{align}
L_{A}(s)&=V(A,0)-V(A,s) \\
&=\int_{t=A}^{T(A)+A-\alpha S_{A}}e^{-r(t-A)}W_{t}dt - \int_{t=A}^{T(A)+A-\alpha (S_{A}+s)}e^{-r(t-A)}W_{t}dt \\
&=\int^{T(A)+A-\alpha S_{A}}_{T(A)+A-\alpha(S_{A}+s)}e^{-r(t-A)W_{t}dt}
\end{align}

Now using Physics Forum's inbuilt Latex thingy the following appears:

[tex]
\begin{align*}
L_{A}(s)&=V(A,0)-V(A,s) \\
&=\int_{t=A}^{T(A)+A-\alpha S_{A}}e^{-r(t-A)}W_{t}dt - \int_{t=A}^{T(A)+A-\alpha (S_{A}+s)}e^{-r(t-A)}W_{t}dt \\
&=\int^{T(A)+A-\alpha S_{A}}_{T(A)+A-\alpha(S_{A}+s)}e^{-r(t-A)W_{t}dt}
\end{align*}
[/tex]

However, when I try to compile this using my own Latex compiler, I get the following error message:

It says that the "align" doesn't work! Are there any computer experts who know what I am doing wrong??

 

[las3rjock]

The "align" environment is provided by the AMS-LaTeX package and can be activated by including the line

\usepackage{amsmath}

somewhere in the preamble of your document. I believe the LaTeX functionality of Physics Forums enables AMS-LaTeX by default, which is why the "align" environment is working correctly on Physics Forums but is not working in your document.

 

[tacman]

Hi there,

It looks like you may be missing some packages in your Latex compiler. The "align" environment is part of the "amsmath" package, so make sure that is included in your document. Also, make sure that you have the correct syntax for the "align" environment - it should be \begin{align*} and \end{align*} for unnumbered equations.

If you're still having trouble, you can try using a different Latex compiler or seeking help on a Latex forum or community. Good luck!