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16 lines
503 B
Fortran
16 lines
503 B
Fortran
logical function ao_two_e_integral_zero(i,j,k,l)
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implicit none
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integer, intent(in) :: i,j,k,l
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ao_two_e_integral_zero = .False.
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if (.not.(read_ao_two_e_integrals.or.is_periodic)) then
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if (ao_overlap_abs(j,l)*ao_overlap_abs(i,k) < ao_integrals_threshold) then
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ao_two_e_integral_zero = .True.
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return
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endif
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if (ao_two_e_integral_schwartz(j,l)*ao_two_e_integral_schwartz(i,k) < ao_integrals_threshold) then
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ao_two_e_integral_zero = .True.
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endif
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endif
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end
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