Exact zero

[Patrick Carle]

This prints a list of numbers, one of which is exactly zero :

fprintf('%.1e\n',((3:14)-14/2)*.01);

But when the 3 is changed to a 2 in ie:

fprintf('%.1e\n',((2:14)-14/2)*.01);

The number that used to be exactly zero is now -1.7e-018. Is this a bug? Is there a way to force this to be exactly zero?

Thanks!