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

# sc\_Backtrack(3)

## NAME

sc::Backtrack

## SYNOPSIS

Inherits **sc::LineOpt**.

### Public Member Functions

**Backtrack** (const **Ref**\< **KeyVal** \> &)\
 int **update** ()\
 Take a step.

### Protected Attributes

double **backtrack\_factor\_**\

### Additional Inherited Members

## Member Function Documentation

### int sc::Backtrack::update ()` [virtual]`

Take a step. Returns 1 if the optimization has converged, otherwise 0.

Implements **sc::Optimize**.

## Author

Generated automatically by Doxygen for MPQC from the source code.