Re: [Help-gsl] Setting maximum step size in ode solvers

2006-06-13 Thread Jochen Küpper
"Bernard Siow" <[EMAIL PROTECTED]> writes: > Thanks for the info. What happens to the actual step size, h, when the > time interval, ti, is set to a value lower than h? Read the source, Luke;) ,[gsl_odeiv_evolve_apply] [...] | double h0 = *h; [...] | if ((dt >= 0.0 && h0 > dt) || (dt < 0.

RE: [Help-gsl] Setting maximum step size in ode solvers

2006-06-13 Thread Bernard Siow
maximum step size in ode solvers Jochen Küpper writes: > "Bernard Siow" <[EMAIL PROTECTED]> writes: > > > Is it possible to set the maximum step size in the ode (ordinary > > > > differential equation) solvers? > > What's about using the T1 pa

Re: [Help-gsl] Setting maximum step size in ode solvers

2006-06-13 Thread Brian Gough
Jochen Küpper writes: > "Bernard Siow" <[EMAIL PROTECTED]> writes: > > > Is it possible to set the maximum step size in the ode (ordinary > > differential equation) solvers? > > What's about using the T1 parameter to gsl_odeiv_evolve_apply? Yes, the second Van der Pol example in the ODE ch

Re: [Help-gsl] Setting maximum step size in ode solvers

2006-06-13 Thread Jochen Küpper
"Bernard Siow" <[EMAIL PROTECTED]> writes: > Is it possible to set the maximum step size in the ode (ordinary > differential equation) solvers? What's about using the T1 parameter to gsl_odeiv_evolve_apply? ,[ (info "(gsl-ref)Evolution") ] | - Function: int gsl_odeiv_evolve_apply (gsl_odeiv

[Help-gsl] Setting maximum step size in ode solvers

2006-06-12 Thread Bernard Siow
Hello, Is it possible to set the maximum step size in the ode (ordinary differential equation) solvers? It's pretty important that the solver doesn't start running away... Also, I will have large and sudden changes in some of the parameters and I think I will need to reset the step size to somethi