On 18.04.2008, at 01:23, [EMAIL PROTECTED] wrote:
Hi, does anyone know good tutorial about how to solve systems of ode equations. I tried the gsl-ref, it seems not to have any explanation how to code a particular system of odes or jacobian.
In the manual, section 25.5 there is the following example. What else do you need?
The following program solves the second-order nonlinear Van der Pol
oscillator equation,
x''(t) + \mu x'(t) (x(t)^2 - 1) + x(t) = 0
This can be converted into a first order system suitable for use with
the routines described in this chapter by introducing a separate
variable for the velocity, y = x'(t),
x' = y
y' = -x + \mu y (1-x^2)
The program begins by defining functions for these derivatives and
their Jacobian,
[...]
Greetings,
Jochen
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