petsc-3.6.1 2015-08-06
MatShift
Computes Y = Y + a I, where a is a PetscScalar and I is the identity matrix.
Synopsis
#include "petscmat.h"
PetscErrorCode MatShift(Mat Y,PetscScalar a)
Neighbor-wise Collective on Mat
Input Parameters
Keywords
matrix, add, shift
See Also
MatDiagonalSet()
Level:intermediate
Location:src/mat/utils/axpy.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages
Examples
src/mat/examples/tutorials/ex9.c.html
src/tao/pde_constrained/examples/tutorials/parabolic.c.html
src/tao/pde_constrained/examples/tutorials/hyperbolic.c.html