MatCreateDiagonal

Creates a matrix defined by a given vector along its diagonal.

Synopsis

#include "petscmat.h" 
PetscErrorCode MatCreateDiagonal(Vec diag, Mat *J)

Collective

Input Parameter

• diag - vector for the diagonal

Output Parameter

• J - the diagonal matrix

Notes

Only supports square matrices with the same number of local rows and columns.

The input vector diag will be referenced internally: any changes to diag will affect the matrix J.

See Also

Matrices, Mat, MatDestroy(), MATCONSTANTDIAGONAL, MatScale(), MatShift(), MatMult(), MatGetDiagonal(), MatSolve() MatDiagonalRestoreInverseDiagonal(), MatDiagonalGetDiagonal(), MatDiagonalRestoreDiagonal(), MatDiagonalGetInverseDiagonal()

Level

advanced

Location

src/mat/impls/diagonal/diagonal.c

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Index of all Mat routines
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Index of all manual pages