[petsc-users] How to zeros all entries of a set of columns of a matrix

rlchen2008 rlchen2008 at 163.com
Thu Feb 25 11:08:34 CST 2010

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Dear all,

  Who can tell me how to zero all entries of a set of COLUMNS of a matrix and let all diagonals of eliminated COLUMNS be 1.0?
  Thanks!

Rongliang
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