> > Hi users, > > For a given orbital, coefficients in g-space are defined up to 4*ecutwfc, > a sphere. To get to the reciprocal space FFT grid, a box, do we place zeros > everywhere else (outside the sphere but inside the FFT grid)? >
Yes, see developer manual, section 6.1. Note the sphere is inscribed inside the FFT grid. *SKumar | PhD.* >
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