| Article ID: | iaor19941033 |
| Country: | Italy |
| Volume: | 22 |
| Issue: | 64 |
| Start Page Number: | 35 |
| End Page Number: | 41 |
| Publication Date: | Dec 1992 |
| Journal: | Ricerca Operativa |
| Authors: | Spedicato Emilio, Xia Zunquan |
The authors consider methods M2 and M3 proposed by Spedicato and Bodon for computing the pseudoinverse. They give a new formal derivation of method M3. The authors show the equivalence of method M2 with the method of Greville and they give a natural modification for the rank deficient case.