DPI is a FORTRAN77 library that supplies the symplectic mapping method for binary star systems (Chambers, Quintana, Duncan & Lissauer, 2002, AJ 123, 2884-2894) for the Mercury N-Body software package by John E. Chambers (ascl:1201.008). The binary symplectic mapping is implemented as a hybrid symplectic method (Chambers, 1999, MNRAS 304, 793-799) that allows close encounters and collisions between massive bodies and is therefore suitable for planetary accretion simulations.
DPI is a FORTRAN77 library that supplies the symplectic mapping method for binary star systems (Chambers, Quintana, Duncan & Lissauer, 2002, AJ 123, 2884-2894) for the Mercury N-Body software package by John E. Chambers ([ascl:1201.008](https://ascl.net/1201.008)). The binary symplectic mapping is implemented as a hybrid symplectic method (Chambers, 1999, MNRAS 304, 793-799) that allows close encounters and collisions between massive bodies and is therefore suitable for planetary accretion simulations.
