A Rapid Numerical Algorithm to Compute Matrix Inversion

Table 2

Results of comparisons for the test problem 2 with condition number 18137.2.

Iterative methods	(2.1)	(2.2)	(2.4)	(3.1)
Number of iterations	29	18	11	10
The condition number of 𝑉𝑛𝐴	1.00135	1.01234	1.01780	1.00114
Residual norm	6.477×10^−7	5.916×10^−6	8.517×10^−6	5.482×10^−7