Every real or complex m × n matrix A with m ≥ n factors uniquely (on its image of full column rank) as A = UP where U has orthonormal columns and P is positive semidefinite. Analogue of the polar form z = r·e^{iθ} for complex numbers.
Every real or complex m × n matrix A with m ≥ n factors uniquely (on its image of full column rank) as A = UP where U has orthonormal columns and P is positive semidefinite. Analogue of the polar form z = r·e^{iθ} for complex numbers.