On 9/3/10, Tuomo Keskitalo <[email protected]> wrote: > one important reason for the evolve level functions is to allow for variable > step size. Adaptive step size control. Why don't consider the *evolve_apply with fixed step as just a special case?
> If you really require a fixed step size for the stepper level, then > you can use the for loop around step_apply function shown in the manual. Of cource, I can (it was noted in bugreport). Sometimes it's just not convinient to use _different loops_ for fixed and variable step sizes. > Also, I'm afraid that using your cfxd may not guarantee the use of a fixed > step size; also evolve_apply can change the step length, so you might have to > have a function something like "evolve_apply_fixed_step_size" to do the job. Why? fc_control_hadjust() always returns GSL_ODEIV_HADJ_NIL - there is no reason to change step size. _______________________________________________ Bug-gsl mailing list [email protected] http://lists.gnu.org/mailman/listinfo/bug-gsl
