mode(-1);

function bars(x)
  printf("Hello, this is function bars with arguments\n");
  disp(x);
endfunction;


function bars2(x)
  printf("Hello, this is function bars2 with arguments\n");
  disp(x);
endfunction;

function foo(bars_function, args)
  printf("Hello, this is the foo function\n");
  printf("Calling bars_function(args):\n");
  bars_function(args); 
endfunction;

foo(bars, 1);
foo(bars2, [3, 4, 5]);
// Works with built-ins too
foo(mean, [3, 4, 5])