[Pw_forum] relax with lelfield

[Q.J.Wang]

Dear pwscf developers
     I want to relax with lelfield ,but in the example31 it said that :"To perform a calculations with an electric field, an estimate of
the optimized wavefunctions is needed to build the electric field
operator." So I want to know whether I should optimize wavefunctions before relax with lelfield or not ?

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Best regards
 
Q.J.Wang
 
XiangTan University 
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