havent noticed i dont generally stare at calcualtors o.0
Im gonna gues that its for people with poor vision or is blind
It's for people who can't see. The dot is on the five cuz it's the middle number. So the blind person knows that left is lower than five and right is higher.
Its foor people with poor vision or blind so they can feel the 5 :)
it's so you can find the center. the same reason the f and j keys have them too, so you know where the keys are without looking.
maybe 5 is like the god of numbers and like the other numbers didnt know how to praise him so they melted a piece of plastic into a dot and stuck it on the 5 and then the phone manufactutur(sp?) was like "oh hoodly haw how'd that get there?" so he thought it was awesome and spread the word to all his phone maker friends so they all started doing it and the keyboard letters did the same with the j and f and the keyboard maker saw it and was like oh yeah and spread the word to all his friends:)
It's the same reason a J has one on a key board. So u can type really fast and not even look at what your typing. Not necessarily for blind people because they'd probably nead dots on every number.
This Is @lien- Language( Correct, I am being SArcastic).
ppl with poor vision or tottally blind. just like on a keyboard. f and j have those things on them. once u no where those r, u can type anything
it because on a keyborad the five is like the home row so that they dont have to look for the five