petsc-3.7.7 2017-09-25
   
MatMultAdd
Computes v3 = v2 + A * v1. 
Synopsis
#include "petscmat.h" 
PetscErrorCode MatMultAdd(Mat mat,Vec v1,Vec v2,Vec v3)
Neighbor-wise Collective on Mat and Vec
Input Parameters
|  | mat | - the matrix | 
|  | v1, v2 | - the vectors | 
Output Parameters
v3  -the result
Notes
The vectors v1 and v3 cannot be the same.  I.e., one cannot
call MatMultAdd(A,v1,v2,v1).
See Also
 MatMultTranspose(), MatMult(), 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/ex9.c.html
src/snes/examples/tutorials/ex70.c.html