Need explanation, thanks

RA E 2: 57 1 0/1 The results of the MATLAB command, where the matrix A has been previously defined, is > >rc = rcond (A) rc = 6.868E-8 TIE The 1-norm condition number of A is (you can use scientific notation, e.g., 1.2e5 for 1.2 x 10, but you cannot use arithmetic expressions) 1783: 6.868e8 LETS: 14,560,279.6 + 5.1%