Least-square with 2-norm constraint

Minimize |A*x-b|^2 such that |x| = cte
1.1K Downloads
Updated 26 Mar 2021

View License

This kind of problem arises in statistics, linear algebra, and regularization.

The method uses quadratic eigen-value problem (QEP).
Version 2 also has Sorensen/Brust method

Cite As

Bruno Luong (2026). Least-square with 2-norm constraint (https://in.mathworks.com/matlabcentral/fileexchange/27596-least-square-with-2-norm-constraint), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2010a
Compatible with any release
Platform Compatibility
Windows macOS Linux
Acknowledgements

Inspired: Quadratic minimization with norm constraint

Version Published Release Notes
2.0.0.1

Add missing file phifun

2.0.0.0

Implement more robust method

1.0.0.0