[Bug-gsl] ode solve: adaptive step size control

[Philip Du Toit]

Dear GSL,

I use gsl_odeiv_control to implement adaptive step size control.
I understand that this function reduces the step size by a scaling  
factor to ensure that an error tolerance is met.

Is there any checking to be sure that underflow after many rescalings  
does not cause the stepsize to become zero?

Is there anyway to ensure that the adaptive control never reduces the  
stepsize below a prescribed lower bound regardless of the error?


Thank you.