Is it possible to write 0.5 in binary format?

[ndee]

Like 0.1010101010101010 or something like that?

 

[ndee]

got it, never mind

 

[NikPreviousAcct]

Answer?

 

[Howard]

Yes. I think it's just 0.1, seeing as it goes from 1 -> 2 -> 4.. on the left, so it should be 1/2 -> 1/4 -> 1/8 on the right.

 

[BigJ]

Hell I'd like to know the answer too and why.

Understanding binary to the left of the decimal place never seemed like much of a challenge, but I've never seen it to the right

 

[fs5]

yes.

 

[NikPreviousAcct]

Originally posted by: fs5
yes.

:laugh:

 

[ndee]

it's 0.1 but I don't know why, I thought wrong. Cuz according to my logic, 1/4 would also be 0.1 but that's wrong, it would be 0.01, no idea why thought.

 

[lancestorm]

no

 

[Rallispec]

windows calculator won't let me do decimals or fractions in binary, hex, or oct. it cuts off eveyrthing after decimal point.

i suppose, given the proper coding envirnment - some languages may support numbers less than zero. I dont know how to do it though.

 

[Pepsi90919]

nvm, google owned me.

 

[dighn]

Originally posted by: ndee
it's 0.1 but I don't know why, I thought wrong. Cuz according to my logic, 1/4 would also be 0.1 but that's wrong, it would be 0.01, no idea why thought.

the place of 0.1 is 1/10 in base ten, so it's 1/2 in base 2

 

[nwfsnake]

Scale Factors!

 

[dighn]

Originally posted by: Pepsi90919
no, it's not. you technically can't even subtract in binary without jumping through hoops.

umm sure you can. you can subtract just like in base 10

 

[BigJ]

Originally posted by: dighn

Originally posted by: ndee
it's 0.1 but I don't know why, I thought wrong. Cuz according to my logic, 1/4 would also be 0.1 but that's wrong, it would be 0.01, no idea why thought.

the place of 0.1 is 1/10 in base ten, so it's 1/2 in base 2

Makes sense now, thanks!

 

[Pepsi90919]

Originally posted by: dighn

Originally posted by: Pepsi90919
no, it's not. you technically can't even subtract in binary without jumping through hoops.

umm sure you can. you can subtract just like in base 10

you missed the last four words.

 

[dighn]

Originally posted by: Pepsi90919

Originally posted by: dighn

Originally posted by: Pepsi90919
no, it's not. you technically can't even subtract in binary without jumping through hoops.

umm sure you can. you can subtract just like in base 10

you missed the last four words.

i dont see how adjusting to a different base is "jumping through hoops" . the rules & procedures are exactly the same

 

[Howard]

Originally posted by: ndee
it's 0.1 but I don't know why, I thought wrong. Cuz according to my logic, 1/4 would also be 0.1 but that's wrong, it would be 0.01, no idea why thought.

Skipped over my post, eh?

 

[Pepsi90919]

Originally posted by: dighn

Originally posted by: Pepsi90919

Originally posted by: dighn

Originally posted by: Pepsi90919
no, it's not. you technically can't even subtract in binary without jumping through hoops.

umm sure you can. you can subtract just like in base 10

you missed the last four words.

i dont see how adjusting to a different base is "jumping through hoops" . the rules & procedures are exactly the same

i've always done it by inverting the number and adding 1 to get a 2's complement number, then adding the other number.

 

[dighn]

Originally posted by: Pepsi90919

i've always done it by inverting the number and adding 1 to get a 2's complement number, then adding the other number.

yeah but you could do it the "natural" way too...

 

[HardcoreRobot]

10 = 2^1 = 2
1 = 2^0 = 1
.1 = 2^-1 = 1/2
.01 = 2^-2 = 1/4

 

[Pepsi90919]

Originally posted by: dighn

Originally posted by: Pepsi90919

i've always done it by inverting the number and adding 1 to get a 2's complement number, then adding the other number.

yeah but you could do it the "natural" way too...

enlighten me?

 

[gwlam12]

i like how the OP responds with "got it" less than a minute after the post is made. how many times do we ask a question only to answer it ourselves right after it is asked? its funny.

 

[wfbberzerker]

isnt it a repeating number?

 

[amoeba]

its 0.1 in regular binary.

typically numbers in decimals are expressed in IEEE floating point though.