tests/is_positive_definite_tests.m

   1 A = [1,0;0,1];
   2 unit_test_equals("The identity is positive definite", ...
   3                  true, ...
   4                  is_positive_definite(A));
   5
   6 A = [1,1;1,1];
   7 unit_test_equals("All-ones matrix is not positive definite", ...
   8                  false, ...
   9                  is_positive_definite(A));
  10
  11 A = [5,1,2;1,6,3;2,3,7];
  12 unit_test_equals("A diagonally-dominant matrix is positive definite", ...
  13                  true, ...
  14                  is_positive_definite(A));