Is it better to write 0.0, 0.0f or .0f instead of simple 0 for supposed float or double values

Hello well all is in the title. The question apply especially for all those values that can be like NSTimeInterval, CGFloat or any other variable that is a float or a double. Thanks.

EDIT: I'm asking for value assignment not format in a string.

EDIT 2: The question is really does assigning a plain 0 for a float or a double is worst than anything with f a the end.