polar-decomp-3by3 - MATLAB code for polar decomposition of a real 3-by-3 matrix
About
polar-decomp-3by3 contains a MATLAB function polar_quaternion for
computing the polar decomposition of a real 3-by-3 matrix.
This decomposition has the form A = Q*H, where Q is orthogonal and H is
symmetric positive semidefinite.
The underlying algorithm is developed in the open-access paper
N. J. Higham and V. Noferini. "An algorithm to compute the polar decomposition of a $3 \times 3$ matrix". Numer. Algorithms, 73(2):349-369, 2016.
The function test.m tests that the code is working correctly.
Requirements
The codes have been developed under MATLAB 2016a and have been tested with MATLAB 2016b.
License
See license.txt for licensing information.