出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2010/08/29 13:11 UTC 版)
ChaNGa (Charm N-body GrAvity solver) is a computer program to perform collisionless N-body simulations. It can perform cosmological simulations with periodic boundary conditions in comoving coordinates or simulations of isolated stellar systems. It is based on the Barnes–Hut algorithm and uses Ewald summation for periodic forces.