Fix omega -> \omega in manual's timescale discussion.

diff --git a/src/sawsim.nw b/src/sawsim.nw
index b83faa5244b194d7200f8c74ed00ed46a1fe5adb..5f89121e6f23443520fdf9bdeabd19a3c47f85c2 100644 (file)
--- a/src/sawsim.nw
+++ b/src/sawsim.nw
@@ -685,7 +685,7 @@ along the chain.  The quality of this assumption depends on your
 particular chain.  For example, a damped spring thermalizes on a
 timescale of order $\tau = 1/\gamma$ where the damping ratio $\gamma
 \equiv \omega_0(-\zeta \pm \sqrt{\zeta^2-1}$, the natural angular
 particular chain.  For example, a damped spring thermalizes on a
 timescale of order $\tau = 1/\gamma$ where the damping ratio $\gamma
 \equiv \omega_0(-\zeta \pm \sqrt{\zeta^2-1}$, the natural angular

-frequency $omega_0 \equiv \sqrt{k/m}$, $\zeta \equiv b/2\sqrt{km}$,
+frequency $\omega_0 \equiv \sqrt{k/m}$, $\zeta \equiv b/2\sqrt{km}$,

 and $b$ sets the drag $F_b = -bv$.  For our cantilevers $\tau$ is
 on the order of milliseconds, which is longer than a timestep.
 However, the approximation is still reasonable, because there is
 and $b$ sets the drag $F_b = -bv$.  For our cantilevers $\tau$ is
 on the order of milliseconds, which is longer than a timestep.
 However, the approximation is still reasonable, because there is