petsc-3.3-p7 2013-05-11
MatMult
Computes the matrix-vector product, y = Ax.
Synopsis
#include "petscmat.h"
PetscErrorCode MatMult(Mat mat,Vec x,Vec y)
Neighbor-wise Collective on Mat and Vec
Input Parameters
| mat | - the matrix
|
| x | - the vector to be multiplied
|
Output Parameters
y -the result
Notes
The vectors x and y cannot be the same. I.e., one cannot
call MatMult(A,y,y).
See Also
MatMultTranspose(), MatMultAdd(), MatMultTransposeAdd()
Level:beginner
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/mat/examples/tutorials/ex2.c.html
src/mat/examples/tutorials/ex4.c.html
src/mat/examples/tutorials/ex9.c.html
src/ksp/ksp/examples/tutorials/ex1.c.html
src/ksp/ksp/examples/tutorials/ex2.c.html
src/ksp/ksp/examples/tutorials/ex5.c.html
src/ksp/ksp/examples/tutorials/ex7.c.html
src/ksp/ksp/examples/tutorials/ex8.c.html
src/ksp/ksp/examples/tutorials/ex8g.c.html
src/ksp/ksp/examples/tutorials/ex9.c.html
src/ksp/ksp/examples/tutorials/ex10.c.html