Re:How real are real numbers? (2004)
by hzhou321 on Tuesday April 11, 2017 @12:33AM
(#14084876)
Seems I agree with you (or you agree with mine) :)
I don't have problem with calculus -- or I wouldn't be able to do physics. I am having problem with calculus based on infinity.
> Also the idea of an actual infinity is a poetic mathematical one. It doesn't have to fit reality. The issue is whether it is useful and to what extent.
Well said.
> Also you don't differentiate numbers (real or rational), you can only differentiate functions.
I don't have problem with calculus -- or I wouldn't be able to do physics. I am having problem with calculus based on infinity.
> Also the idea of an actual infinity is a poetic mathematical one. It doesn't have to fit reality. The issue is whether it is useful and to what extent.
Well said.
> Also you don't differentiate numbers (real or rational), you can only differentiate functions.
Of course I meant distinction.