I want to make alignments that look like this:
which I have done by using
\begin{align}
& \frac{dx}{dt} = y \qquad \frac{dy}{dt} = x \\
\implies & \frac{d^2x}{dt^2} = \frac{d}{dt}\bigg(\frac{dx}{dt} \bigg) \\
& \; \; \; \; \; \; \, = \frac{dy}{dt} \\
& \; \; \; \; \; \; \, = x \\
\implies & \frac{d^2x}{dt^2} = x \\
\implies & x(t) = Ae^t + Be^{-t}
\end{align}
Of course, it's kinda silly to do \; \; \; \; ... and align them manually. However, when I try putting a \begin{align} within another \begin{align} like this
\begin{align}
\begin{align}
\end{align}
\end{align}
it gives me an error.
What is the correct way of doing this?
EDIT:
\begin{alignat} still doesn't quite get me there:
\begin{alignat}{2}
& \frac{dx}{dt} = y \qquad \frac{dy}{dt} = x \\
\implies & \frac{d^2x}{dt^2} && = \frac{d}{dt}\bigg(\frac{dx}{dt} \bigg) \\
& && = \frac{dy}{dt} \\
& && = x \\
\implies & \frac{d^2x}{dt^2} = x \\
\implies & x(t) = Ae^t + Be^{-t}
\end{alignat}
gives
alignat
rather thanalign
--alignat
allows for multiple&
'columns'&
is used before=