Error message for tspan in ode45

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Nani C
Nani C on 27 Sep 2012
Hi all;
While using ode45 with a pre generated time vector taken in a loop, i get the error message :
The entries in tspan must strictly increase or decrease.
Error in ==> ode45 at 173 [neq, tspan, ntspan, next, t0, tfinal, tdir, y0, f0, odeArgs, odeFcn, ...
Any guidance or reference to docs on this error would be helpful.
Thanks, Nani.
  1 Comment
Star Strider
Star Strider on 27 Sep 2012
What values do your vectors for tspan have in your loop?

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Answers (1)

Babak
Babak on 27 Sep 2012
You get this error when your timespan is incorrectly set up.
Example of incorrect timespan:
[0 0]
[0:0.01:10 9]
Correct version:
[0 10]
[0:0.01:10]

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