---
name: "sc_PW92LCFunctional"
section: "3"
platform: "linux"
package: "libsc-doc"
version: "2.3.1-22"
release: "Debian 12 (Bookworm)"
platforms: ["linux"]
url: "https://new.carta.tech/sc_PW92LCFunctional"
---

# sc\_PW92LCFunctional(3)

Implements the PW92 local (LSDA) correlation term.

## NAME

sc::PW92LCFunctional - Implements the PW92 local (LSDA) correlation term.

## SYNOPSIS

`#include <functional.h>`

Inherits **sc::LSDACFunctional**.

### Public Member Functions

**PW92LCFunctional** (const **Ref**\< **KeyVal** \> &)\
 **PW92LCFunctional** (**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.  void **point\_lc** (const **PointInputData** &, **PointOutputData** &, double &, double &, double &)\

### Protected Member Functions

double **F** (double x, double A, double alpha\_1, double beta\_1, double beta\_2, double beta\_3, double beta\_4, double p)\
 double **dFdr\_s** (double x, double A, double alpha\_1, double beta\_1, double beta\_2, double beta\_3, double beta\_4, double p)\

### Additional Inherited Members

## Detailed Description

Implements the PW92 local (LSDA) correlation term.

This local correlation functional is used in PW91 and PBE.

J. P. Perdew and **Y**. Wang. Phys. Rev. B, 45, 13244, 1992.

## Member Function Documentation

### void sc::PW92LCFunctional::point\_lc (const PointInputData &, PointOutputData &, double &, double &, double &)` [virtual]`

Implements **sc::LSDACFunctional**.

### void sc::PW92LCFunctional::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::LSDACFunctional**.

## Author

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