.. table:: Meta functionals available in |PSIfour| +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+--------------------------------------------------------------+ | Name | Description | GGA? | Meta? | X_LRC? | X_Hybrid? | C_LRC? | C_Hybrid? | C_SCS? SS/OS | Dispersion? | Dispersion Description | +======================+==================================================================================+============+============+============+============+============+============+======================+======================+==============================================================+ | M05 | Heavily Parameterized Hybrid Meta-GGA XC Functional | Y | Y | --- | 0.280000 | --- | --- | --- | --- | --- | +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+--------------------------------------------------------------+ | M05-2X | Heavily Parameterized Hybrid Meta-GGA XC Functional | Y | Y | --- | 0.560000 | --- | --- | --- | --- | --- | +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+--------------------------------------------------------------+ | M05-2X-D3 | Heavily Parameterized Hybrid Meta-GGA XC Functional | Y | Y | --- | 0.560000 | --- | --- | --- | -D3ZERO | Grimme's -D3 (zero-damping) Dispersion Correction | +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+--------------------------------------------------------------+ | M05-D3 | Heavily Parameterized Hybrid Meta-GGA XC Functional | Y | Y | --- | 0.280000 | --- | --- | --- | -D3ZERO | Grimme's -D3 (zero-damping) Dispersion Correction | +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+--------------------------------------------------------------+ | dlDF | Dispersionless Hybrid Meta-GGA XC Functional | Y | Y | --- | 0.614413 | --- | --- | --- | --- | --- | +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+--------------------------------------------------------------+ | dlDF+D | Dispersionless Hybrid Meta-GGA XC Functional | Y | Y | --- | 0.614413 | --- | --- | --- | -DAS2010 | Podeszwa and Szalewicz Dispersion Correction | +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+--------------------------------------------------------------+ | dlDF+D09 | Dispersionless Hybrid Meta-GGA XC Functional | Y | Y | --- | 0.614413 | --- | --- | --- | -DAS2009 | Podeszwa and Szalewicz Dispersion Correction | +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+--------------------------------------------------------------+