function x = test_sparse33 ar = [1,0,3,4,5;6,2,3,5,0;0,0,0,0,2;0,4,5,0,3]; ai = [0,2,9,0,2;0,0,0,2,0;1,3,4,0,2;1,0,0,0,2]; a = complex(ar+ai); A = sparse(a); b = [3;2;5]; c = [2,4,3]; d = complex([9,3,2,4,9,0,5,4,2] + 3*i); a(b,c) = d; A(b,c) = d; x = testeq(a,A);