A note on SVD and pseudo-inverse

SVD is a most powerful concept extensively used in a large number of models. It plays an important role in PCA. As it describes the factorization of matrix, it is also used in matrix completion. Hence we proposed the concept of SVD here with an illustrative example. If a linear system has no solution, the pseudo-inverse will help us in finding the BEST-FIT solution. In new of this, we (the authors) presented the mathematical concept behind it and shown one illustrative example.