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MatGetTrace#

Gets the trace of a matrix. The sum of the diagonal entries.

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatGetTrace(Mat mat, PetscScalar *trace)

Collective on mat

Input Parameters#

  • mat - the matrix

Output Parameter#

  • trace - the sum of the diagonal entries

See Also#

Mat

Level#

advanced

Location#

src/mat/interface/matrix.c


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Index of all Mat routines
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© Copyright 1991-2022, UChicago Argonne, LLC and the PETSc Development Team.

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Last updated on 2022-11-28T10:38:28-0600 (v3.18.2).