petsc-3.6.0 2015-06-09
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MatCopy

Copys a matrix to another matrix.

Synopsis

#include "petscmat.h" 
PetscErrorCode  MatCopy(Mat A,Mat B,MatStructure str)
Collective on Mat

Input Parameters

A - the matrix
str - SAME_NONZERO_PATTERN or DIFFERENT_NONZERO_PATTERN

Output Parameter

B -where the copy is put

Notes

If you use SAME_NONZERO_PATTERN then the two matrices had better have the same nonzero pattern or the routine will crash.

MatCopy() copies the matrix entries of a matrix to another existing matrix (after first zeroing the second matrix). A related routine is MatConvert(), which first creates a new matrix and then copies the data.

See Also

MatConvert(), MatDuplicate()

Level:intermediate
Location:
src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/ts/examples/tutorials/ex23.c.html
src/tao/pde_constrained/examples/tutorials/elliptic.c.html
src/tao/pde_constrained/examples/tutorials/parabolic.c.html
src/tao/pde_constrained/examples/tutorials/hyperbolic.c.html