libxc version 7.1.2
S. Lehtola, C. Steigemann, M. J. T. Oliveira, and M. A. L. Marques,  SoftwareX 7, 1–5 (2018)
doi: 10.1016/j.softx.2017.11.002

   func_id: 498                 
      name: mgga_c_r2scan            
    family: XC_FAMILY_MGGA      
      kind: XC_CORRELATION           
   comment: Re-regularized SCAN correlation by Furness et al

Reference(s):
  *) J. W. Furness, A. D. Kaplan, J. Ning, J. P. Perdew, and J. Sun,  J. Phys. Chem. Lett. 11, 8208–8215 (2020)
     doi: 10.1021/acs.jpclett.0c02405
     bibtex key: Furness2020_8208
  *) J. W. Furness, A. D. Kaplan, J. Ning, J. P. Perdew, and J. Sun,  J. Phys. Chem. Lett. 11, 9248–9248 (2020)
     doi: 10.1021/acs.jpclett.0c03077
     bibtex key: Furness2020_9248

Implementation has support for:
  *) energy
  *) first derivative
  *) second derivative

Default thresholds:
density: 1.000000e-15
   zeta: 2.220446e-16
  sigma: 1.000000e-20
    tau: 1.000000e-20

Functional has 1 external parameters:
idx         value     name description
  0  1.000000e-03     _eta Regularization parameter
