petsc-3.7.3 2016-07-24
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# MatGetNearNullSpace

et null space attached with MatSetNearNullSpace()

### Synopsis

    #include "petscmat.h"
    PetscErrorCode MatGetNearNullSpace(Mat mat,MatNullSpace *nullsp)

Not Collective

### Input Parameters

mat -the matrix

### Output Parameters

nullsp -the null space object, NULL if not set

### See Also

MatSetNearNullSpace(), MatGetNullSpace(), MatNullSpaceCreate()

Level:developer
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/ksp/ksp/examples/tutorials/ex49.c.html