Block matrix pseudoinverse: Difference between revisions

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=== Row-wise partitioning in under-determined least squares ===
 
[Comment re. below: According to section "Derivation" above this method of calculating [A, B]+ for m>=n+p. Can it then be used for an underdetermined system where by definition m (size of x and equal to number of variables) > n+p (number of equations)?]
 
Suppose a solution <math> \mathbf x </math> solves an under-determined system: