Quote Originally Posted by -N-
Solve the following, anyone?
<pre>
[1 0 1] [e^t ]
X' = [0 0 1] X + [0 ]
[0 0 2] [e^-t]
</pre>
X and X' are vectors, obviously. I got
<pre>
[t] [1] [0]
e^t(c1 [2] + c2 [0]) + c3 [1]
[1] [0] [0]
</pre>
for the undriven case, which I'm fairly certain of, and
<pre>
[te^t(1+K3) + e^t(K1) + .25e^-t]
[2e^t(K3) + e^-t + (K2 - 2K3) ]
[e^t(K3) - .5e^-t ]
</pre>
for the driven case.

Take your best shot; I guess I'm just looking to make sure I'm right.
Is this work you want other people to do for you?