# 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
ex12.c
ex13.c
ex14.c
ex15.c
ex16.c
ex17.c
ex18.c
ex19.c
ex2.c
ex20.c
ex23.c
ex3.c
ex30.c
ex32.c
ex4.c
ex40.c
ex41.c
ex42.c
ex43.c
ex5.c
ex50.c
ex51.c
ex6.c
ex7.c
ex8.c
ex9.c
makefile