This appears to be essentially equivalent to solving a linear system using the Moore-Penrose pseudoinverse. <a href="https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Moore%E2%80%93Penrose_pseudoinverse" rel="nofollow">https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Moore%E2%80%93Penrose_pseudo...</a>