# DM Manual Pages
Examples
DM objects are used to manage communication between the algebraic structures in PETSc (Vec and Mat) and mesh data structures
in PDE-based (or other) simulations. See, for example, `DMDACreate()`.
ex1.c
ex10.c
ex11.c
ex13.c
ex14.c
ex1f90.F90
ex3f90.F90
ex4f90.F90
ex5.c
ex6.c
ex7.c
ex8.c
ex9.c
makefile