Approximating the Inverse of a Square Matrix with Application in Computation of the Moore-Penrose Inverse

Algorithm 4

m  =  1200;  k  =  1500;  number  =  20;

Table[A[l]  =  SparseArray[{Band[{400,  1},  {m,  k}]  ->  Random[]  −  I,

Band[{1,  200},  {m,  k}]  ->  {1.1,  -Random[]},

Band[{−95,  100}]  ->  −0.02,  Band[{−100,  500}]  ->  0.1},

                {m,  k},  0.];,  {l,  number}];