[petsc-users] How to get the matrix diagonal value A(i,i)

[Jed Brown]

MatGetDiagonal or MatGetValue, depending on how you want it.
On Jun 11, 2013 7:41 AM, "丁老师" <ztdepyahoo at 163.com> wrote:

> which function return the value at the diagonal of matrix A(i,i).
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> Regards.
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