On 8/26/21 10:22 AM, Praveen C wrote:

ExplicitRungeKutta and EmbeddedExplicitRungeKutta are derived from RungeKutta 
but there is no virtual function with these arguments in RungeKutta.

Is it possible to declare such a virtual function in the base class ? Seems 
useful to have this.

Do all of the other derived classes have similar functions?

Separately, though, my suggestion would be to use the functionality of the SUNDIALS wrappers. SUNDIALS has better (and, more importantly, adaptive-timestep) integrators.

Best
 W.

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Wolfgang Bangerth          email:                 bange...@colostate.edu
                           www: http://www.math.colostate.edu/~bangerth/

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