petsc-3.7.3 2016-07-24
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# MatFindNonzeroRows

Locate all rows that are not completely zero in the matrix

### Synopsis

    #include "petscmat.h"
    PetscErrorCode MatFindNonzeroRows(Mat mat,IS *keptrows)

### Input Parameter

A -the matrix

### Output Parameter

keptrows -the rows that are not completely zero

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