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[ascl:2303.012] EvoEMD: Cosmic Evolution with an Early Matter-Dominated era

EvoEMD evaluates cosmic evolution with or without an early matter dominated (EMD) era. The framework includes global parameter, particle, and process systems, and different methods for Hubble parameter calculation. EvoEMD automatically builds up the Boltzmann equation according to the user's definition of particle and process,solves the Boltzmann equation using 4th order Runge-Kutta method with adaptive steps tailored to cosmology application, and caches the collision rate calculation results for fast evaluation.

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