about lsode

[Pascal A. Dupuis]

Hello,
a few questions about lsode:
1) is lsode_options() persistant ? I mean, if I set some param, will
it stay forever of should the call be repeated each time before
lsode() itself ?
2) I'm trying to integrate the function
   xdot= a2 Il^2 + a1 Il + b3 x^3 + ...
   where Il is a function of time, a2, a1, b3, ... are constant
   about the jacobian: is this correct: 
   jac = 3 b3 x^2 + 2 b2 x + ...
   what about t ? what about terms like 2 a2 Il dIl/dt ?

Thanks in advance

Pascal    

-- 
Dr. ir. Pascal Dupuis
K. U. Leuven, ESAT/ELECTA (formerly ELEN):  http://www.esat.kuleuven.ac.be/
Kasteelpark Arenberg, 10; B-3001 Leuven-Heverlee, Belgium
Tel. +32-16-32 10 21 -- Fax +32-16-32 19 85



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