Xc.v8.7.1 -

Computational cost, limitations, known edge cases.

xc.v8.7.1 offers a balanced accuracy/efficiency trade-off. xc.v8.7.1

Briefly describe the role of exchange-correlation functionals in DFT, prior version xc.v8.6 , motivation for v8.7.1 . Computational cost, limitations, known edge cases