### The atomic LDA calculation of K

```***************************************************
Input file
***************************************************

System.CurrentDirectory    ./
System.Name                 K0
<<< Calculation type >>>
eq.type                     sch
calc.type                   ALLFEM
xc.type                     LDA
<<< Atom >>>
AtomSpecies                 19
max.ocupied.N               4
total.electron              19.0000
valence.electron            9.0000

grid.xmax                  10.000    # rmax=xmax^2
grid.num                    4359
<<< SCF >>>
scf.maxIter                 200
scf.Mixing.Type             Simple
scf.Init.Mixing.Weight      0.10000
scf.Min.Mixing.Weight       0.00100
scf.Max.Mixing.Weight       0.60000
scf.criterion               1.000e-100

*****************************************************
Eigenvalues (Hartree) in all electron calculation
*****************************************************

n=  1  l=  0       -128.414956914531113
n=  2  l=  0        -12.839001534344592
n=  2  l=  1        -10.283850900712654
n=  3  l=  0         -1.281896601350596
n=  3  l=  1         -0.693776456220286
n=  4  l=  0         -0.088814946651956

*****************************************************
Energies (Hartree) in all electron calculation
*****************************************************

Etot   =     -598.200589712013497
Etot   = Ekin + EHart + Exc + Eec

Ekin   =      597.172130376611948
EHart  =      257.381523652517125
Eec    =    -1421.104115018126992
Exc    =      -31.650128723015577

Exc    = Ex + Ecorr = (Ex-Ekin_x) + (Ecorr-Ekin_c) + Ekin_x + Ekin_c
Ex     =      -30.147528339047572
Ecorr  =       -1.502600383968005
Ekin_x =       -0.000000000000000
Ekin_c =        1.028459335398193

Eeigen =     -351.026289188702199

Virial theorem  2*(Ekin+Ekin_x+Ekin_c)+(EHart+Eec+Exc-Ekin_x-Ekin_c) = -0.000000000003356
Virial theorem (EHart+Eec+Exc-Ekin_x-Ekin_c)/(Ekin+Ekin_x+Ekin_c)    = -2.000000000000006
```