function x = test_sparse23
N = 1000;
M = 7000;
a = double(40*randn(N));
A = sparse(a);
rc = int32((N-1)*rand(M,1))+1;
cc = int32((N-1)*rand(M,1))+1;
lc = rc+N*(cc-1);
b = a(lc);
B = A(lc);
x = testeq(b,B);
