Science Memes

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near zero (mander.xyz)

submitted 6 months ago by [email protected] to c/[email protected]

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[–] [email protected] 11 points 6 months ago (4 children)

What do you mean? In two's complement, there is only one zero.

[–] [email protected] 39 points 6 months ago

IEEE 754 floating point numbers have a signed bit at the front, causing +0 and -0 to exist.

[–] [email protected] 18 points 6 months ago

Specifically I was referring to standard float representation which permits signed zeros. However, other comments provide some interesting examples also.

[–] sus 4 points 6 months ago

floats

[–] [email protected] 2 points 6 months ago (1 children)

1- 0,99999....

[–] [email protected] 2 points 6 months ago (1 children)

Floating point numbers are not possible in two's complement, besides that, what is your point? 0,99999999... is probably the same as 1.

[–] [email protected] 2 points 6 months ago (1 children)

Yes, mathematically it's the same, but in physics there's a guy named Heisenberg who denies that 0.99999... really gets to 1. There is always this difference, for a mathematician infinite is not a problem, but for a physicist it is, plus a very big one.

[–] [email protected] 2 points 6 months ago

True, it sounds like that might be a problem if we consider that physics has to be between math and computer science.

(Have a nice day)