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*CI VECTOR  

Purpose:

To obtain initial guess for CI vector(s).

.PLUS COMBINATIONS  
Use with ".STARTHDIAGONAL  " to choose plus combination of degenerate diagonal elements (STRONGLY RECOMMENDED for calculation of singlet states with ".DETERMINANTS  ").

.SELECT CONFIGURATION  
READ (LUINP,*) ICONF
Select CSF (or determinant if ".DETERMINANTS  ") no. ICONF as start configuration. 

.STARTHDIAGONAL  
Select configurations corresponding to the lowest diagonal elements in the configuration part of the Hessian (this is the default option).

.STARTOLDCI  
Start from old CI-vector stored saved on the "f21" file.



Kenneth Ruud
Sat Apr 5 10:26:29 MET DST 1997