[Pw_forum] G-vectors

[S. D. Wang]

Dear developers:
In scf.out file, it has 'G cutoff =  122.3770  (  89195 G-vectors)     FFT
grid: ( 24, 40,216)' , I want to kown the relation of cutoff and G-vectors.
How can I understand the 122.3770 and 89195?


-- 
S. D. Wang
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*王舒东*
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