This is the second release of wendy, a one-dimensional N-body code. Changes from the previous v0.1 version are:
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Added different options for performing the necessary sort in the approximate version of the algorithm: mergesort, quicksort, timsort, as well as a parallel mergesort (which is, however, not very efficient).
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Added option to add an arbitrary external force F(x,t) to the approximate version of the algorithm.
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Added an example of using wendy to generate a phase-space spiral similar to that observed by Gaia, through a simple perturbation of the Galactic disk (examples/GaiaPhaseSpaceSpiral.ipynb).