Using octave or matlab. define a 100x100 square matrix a and the column vector b by:
aij = iij + 1/(-j+1), bi=1+2/i, 1< =i, j< =100
where iij is the 100x100 identity matrix(i. e. 1 on the main diagonal and 0 everywhere else). solve ax=b for x using both gauss-seidel and a\b construct. do not give the whole vector x in you output, but only x2,x50 and x99