Function test1

test/test_rank_matrix.cpp:10–16

typedef vector<vector<dbl> > matrix;

void test1(){
    matrix A(3);
    A[0] = {1, 1, 0};
    A[1] = {0, 1, 0};
    A[2] = {1, 0, 0};
    assert(compute_rank(A) == 2);
}

void test2(){
    matrix A(3);