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Re: simulating dynamical systems with arbitrary external inputs using ls
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From: |
John W. Eaton |
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Subject: |
Re: simulating dynamical systems with arbitrary external inputs using lsode |
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Date: |
Fri, 22 Jun 2007 16:52:03 -0400 |
On 22-Jun-2007, Scott Kuntze wrote:
| function retval = u(t)
| tvals = some array
| uvals = some array
| idx = find(t == tvals)
It's not find that is causing trouble, it is that you are using ==
here. That can only return a value when T is exactly equal to one of
the values in your TVALS array, which isn't likely to happen. The
function I posted computes values of U between data points using a
zero order hold.
jwe