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. Author manuscript; available in PMC: 2017 Nov 3.
Published in final edited form as: J Comput Phys. 2016 Jul 11;323:219–242. doi: 10.1016/j.jcp.2016.06.038

Fig. 7.

Fig. 7

Results from the second convergence test: errors of the fast convolution method as a function of the time step size. The reference solution is obtained from a higher resolution simulation.