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Feb 21, 2017 at 20:50 vote accept Slaven Glumac
Feb 21, 2017 at 4:54 answer added David Ketcheson timeline score: 4
Feb 21, 2017 at 2:58 comment added VorKir Not majoring in ODE solvers, but as I recall, benchmark for stiff ODE solvers do not have analytical solution available usually. One of the known authors in this field usually takes Belousov-Zhabotinsky reaction as a benchmark, for example.
Feb 20, 2017 at 22:26 answer added Robert Israel timeline score: 1
Feb 20, 2017 at 22:13 comment added Piyush Grover You can easily come up with stiff systems which are analytically solvable. Basically, you need the eigenvalues to be of very different sizes, say $\lambda_1=10^3\lambda_2$.
Feb 20, 2017 at 20:28 comment added Slaven Glumac @Robert Israel I realize that this is the case and this fine for me. I would like to make experiments with such demonstration systems for introduction purposes.
Feb 20, 2017 at 17:56 comment added Robert Israel Focussing on systems with closed-form solutions pretty much excludes chaotic systems, which are ones where global error can be severe (butterfly effect etc.)
Feb 20, 2017 at 17:28 comment added Slaven Glumac @PiyushGrover They should be more complicated in the sense they reveal strengths and weaknesses of different ODE solvers. Another example may be 2nd order linear system with a large stiffness ratio and so on. I could take the time and try to enumerate them, but I am hoping to find a reference that already did something similar. This was already done in mentioned articles, but with local error as one of criteria instead of global error.
Feb 20, 2017 at 15:53 comment added Piyush Grover So you want more complicated systems than the example you presented ?
Feb 20, 2017 at 15:50 review First posts
Feb 20, 2017 at 16:00
Feb 20, 2017 at 15:46 history asked Slaven Glumac CC BY-SA 3.0