Use the comment sign % instead of a blank line.

\begin{align*}
L\frac{di}{dt} + Ri = EU(t) \\
i(0) = 0
\end{align*}
%
In Heaviside's operator notation, this is 
%
\begin{align*}
pLi + Ri &amp;= EU(t)\\
i &amp;= \frac{E}{pL + R}U(t)
\end{align*}


Align Environment and Spacing
I'm trying to log in to the CakePHP website using Open ID:
http://ask.cakephp.org/users/login

The most correct looking URL I've found is:
https://www.google.com/accounts/o8/id

..but I can't properly determine what I'm supposed to enter for my open ID, as it rejects everything that I try putting in.

Is the cake site just broken, or do I have the wrong URL?
