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# sc::PsiCCSD Class Reference

PsiCCSD is a concrete implementation of Psi CCSD wave function. More...

`#include <psiwfn.h>`

Inheritance diagram for sc::PsiCCSD:

List of all members.

## Public Member Functions
| PsiCCSD (const Ref< KeyVal > &)
| PsiCCSD (StateIn &)
void | save_data_state (StateOut &)
| Save the base classes (with save_data_state) and the members in the same order that the StateIn CTOR initializes them.
int | spin_polarized ()
| Return 1 if the alpha density is not equal to the beta density.
int | gradient_implemented () const
## Protected Member Functions
void | write_input (int conv)
| Prepares a complete Psi input file. The input file is assumed to have been opened.

## Detailed Description

PsiCCSD is a concrete implementation of Psi CCSD wave function.

## Member Function Documentation

void sc::PsiCCSD::save_data_state | ( | StateOut & |  | ) | `[virtual]`

Save the base classes (with save_data_state) and the members in the same order that the StateIn CTOR initializes them.

This must be implemented by the derived class if the class has data.

Reimplemented from sc::PsiWavefunction.

The documentation for this class was generated from the following file:

- psiwfn.h