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| program | xc_semilocal_unittest |
| subroutine | evaluate (x, energy, gradient, hessian, derivative_order) |
| | Evaluate native PBE in its independent spin-density and gradient-norm variables.
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◆ xc_semilocal_unittest()
| program xc_semilocal_unittest |
◆ evaluate()
| subroutine xc_semilocal_unittest::evaluate |
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real(dp), dimension(5), intent(in) | x, |
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real(dp), intent(out) | energy, |
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real(dp), dimension(5), intent(out) | gradient, |
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real(dp), dimension(5, 5), intent(out) | hessian, |
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integer, intent(in), optional | derivative_order ) |
Evaluate native PBE in its independent spin-density and gradient-norm variables.
- Parameters
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| x | Two spin densities followed by total, alpha and beta gradient norms. |
| energy | Energy density. |
| gradient | First derivatives, with the accumulation of another functional preserved. |
| hessian | Second derivatives in the same independent variables. |
| derivative_order | ... |
Definition at line 560 of file xc_semilocal_unittest.F.