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James_Probert



Joined: Nov 25, 2007

Post   Posted: Oct 04, 2011 - 23:06 Reply with quote Back to top

DukeTyrion wrote:
Sutherlands wrote:
DukeTyrion wrote:
Sutherlands wrote:
DukeTyrion wrote:
The problem is, the decimal system can never quite be exact.
Give me a fraction that can't be represented as a decimal, please.


Pi
Seriously? You think Pi is a fraction?


It might be an irrational number, but it's a hell of a lot easier to just represent it at 355/113 Wink


which is wrong by the 8th significant figure...
not useful.

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DukeTyrion



Joined: Feb 18, 2004

Post   Posted: Oct 04, 2011 - 23:09 Reply with quote Back to top

James_Probert wrote:
DukeTyrion wrote:
Sutherlands wrote:
DukeTyrion wrote:
Sutherlands wrote:
DukeTyrion wrote:
The problem is, the decimal system can never quite be exact.
Give me a fraction that can't be represented as a decimal, please.


Pi
Seriously? You think Pi is a fraction?


It might be an irrational number, but it's a hell of a lot easier to just represent it at 355/113 Wink


which is wrong by the 8th significant figure...
not useful.


And how many digits do you remember Pi to when you do your calculations?
Grod



Joined: Sep 30, 2003

Post   Posted: Oct 04, 2011 - 23:09 Reply with quote Back to top

Well if you talk about winning the lottery, then we are talking similar chances for each player (very close to 0). However, often SOMEONE wins, so the chance was not exactly 0 for that 1 winner...

(this is a response to the OP)

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Last edited by Grod on Oct 04, 2011 - 23:14; edited 1 time in total
Sutherlands



Joined: Aug 01, 2009

Post   Posted: Oct 04, 2011 - 23:13 Reply with quote Back to top

DukeTyrion wrote:
James_Probert wrote:
DukeTyrion wrote:
Sutherlands wrote:
DukeTyrion wrote:
Sutherlands wrote:
DukeTyrion wrote:
The problem is, the decimal system can never quite be exact.
Give me a fraction that can't be represented as a decimal, please.


Pi
Seriously? You think Pi is a fraction?


It might be an irrational number, but it's a hell of a lot easier to just represent it at 355/113 Wink


which is wrong by the 8th significant figure...
not useful.


And how many digits do you remember Pi to when you do your calculations?
3.1415926535 is the part i remember. Of course most calculators and software have a value that you can use.
James_Probert



Joined: Nov 25, 2007

Post   Posted: Oct 04, 2011 - 23:13 Reply with quote Back to top

DukeTyrion wrote:
James_Probert wrote:
DukeTyrion wrote:
Sutherlands wrote:
DukeTyrion wrote:
Sutherlands wrote:
DukeTyrion wrote:
The problem is, the decimal system can never quite be exact.
Give me a fraction that can't be represented as a decimal, please.


Pi
Seriously? You think Pi is a fraction?


It might be an irrational number, but it's a hell of a lot easier to just represent it at 355/113 Wink


which is wrong by the 8th significant figure...
not useful.


And how many digits do you remember Pi to when you do your calculations?


Depends.

If I have other limitations with regards to accuracy, then 4/5 is good enough, which I can just do off the top of my head.

If other things are more exact, I might write/use a program to get it to 10+ figures.

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DukeTyrion



Joined: Feb 18, 2004

Post   Posted: Oct 04, 2011 - 23:14 Reply with quote Back to top

James_Probert wrote:

Depends.

If I have other limitations with regards to accuracy, then 4/5 is good enough.


In which case 355/113 would work perfectly well too Very Happy
Grim04



Joined: Oct 30, 2005

Post   Posted: Oct 04, 2011 - 23:18 Reply with quote Back to top

Sutherlands wrote:
DukeTyrion wrote:
The problem is, the decimal system can never quite be exact.
Give me a fraction that can't be represented as a decimal, please.


1/0
shadow46x2



Joined: Nov 22, 2003

Post   Posted: Oct 04, 2011 - 23:21
FUMBBL Staff
Reply with quote Back to top

Grim04 wrote:
Sutherlands wrote:
DukeTyrion wrote:
The problem is, the decimal system can never quite be exact.
Give me a fraction that can't be represented as a decimal, please.


1/0


you, sir...win one internets Smile

--j

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sann0638



Joined: Aug 09, 2010

Post   Posted: Oct 04, 2011 - 23:29 Reply with quote Back to top

[quote="James_Probert"]which is wrong by the 8th significant figure...
not useful.[/quote

I think I read that 8 sig figs is accurate enough to give the circumference of the earth (assuming the earth is a spher) correct to a cm, or something like that. So pretty useful.

And back to the logs chap (struggling to quote more than once), how would you put 0.9 recurring into your calculator?
Sutherlands



Joined: Aug 01, 2009

Post   Posted: Oct 04, 2011 - 23:41 Reply with quote Back to top

Grim04 wrote:
Sutherlands wrote:
DukeTyrion wrote:
The problem is, the decimal system can never quite be exact.
Give me a fraction that can't be represented as a decimal, please.


1/0
Not a number, but well played.
sann0638 wrote:
And back to the logs chap (struggling to quote more than once), how would you put 0.9 recurring into your calculator?
1
James_Probert



Joined: Nov 25, 2007

Post   Posted: Oct 04, 2011 - 23:46 Reply with quote Back to top

As an addendum to the OP:

Can anyone think of a situation where it is more efficient/better to use 0.9 recurring, instead of 1?

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Fela



Joined: Dec 27, 2004

Post   Posted: Oct 04, 2011 - 23:56 Reply with quote Back to top

James_Probert wrote:
As an addendum to the OP:

Can anyone think of a situation where it is more efficient/better to use 0.9 recurring, instead of 1?


When explaining recurring numbers? Smile
BooAhl



Joined: Sep 02, 2004

Post   Posted: Oct 05, 2011 - 00:00 Reply with quote Back to top

Sutherlands wrote:
DukeTyrion wrote:
The problem is, the decimal system can never quite be exact.
Give me a fraction that can't be represented as a decimal, please.
]

How about Pie? Is that a fraction?





Now laugh funny guys!
Alf115



Joined: Aug 17, 2005

Post   Posted: Oct 05, 2011 - 00:11 Reply with quote Back to top

/me got this nice T-Shirt : http://s3.amazonaws.com/wootsaleimages/Reflections_on_PibkdDetail.png

Woot can be nice to find such thing sometimes : http://shirt.woot.com/blog/viewentry.aspx?id=16289
Brother-Fu



Joined: Dec 22, 2006

Post   Posted: Oct 05, 2011 - 00:14 Reply with quote Back to top

Damn Paul, you really know how to give the nerds a hard-on...

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