conj-grad conv=1.d-7),
maxium number of iteration (maxit=20),
output level output=0-3,
asymptotic continuation in each iteration (cgasy=1).
With slater-dtresh= 1.d-9 (default) the calculations of
the numerical integrals for the Slater potential is performed only if it
changes more than 1.d-9.
Asymptotic regions specification:
corrct-region
slater-region
correct-b-region and slater-b-region for the beta spin.