Improved Qrginv Algorithm for Computing Moore-Penrose Inverse Matrices

Table 10

Test problem information.

Matrix∖property	𝑚	𝑛	nnz	Cond
WELL1033	1033	320	4732	Not available
WELL1850	1850	712	8758	Not available
ILCC1033	1033	320	4732	Not available
ILCC1850	10850	712	8758	Not available
WATT1	1856	1856	11360	5.4𝑒+009
GR-30-30	900	900	4322	3.8𝑒+002
ADD20	2395	2395	17319	1.76𝑒+004
NOSE3	960	960	8402	7.3𝑒+004
SHERMAN1	1000	1000	3750	2.3𝑒+004