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#1
11-18-2007, 07:45 PM
 john kane Senior Member Join Date: Dec 2004 Posts: 2,829
Maths: why does 987654321 / 123456789 = 8.000000073

i have spent many time at work typing into my calculator stuff like this. anyone know why if you do 987654321 divided by 123456789 it comes to such an eerie number, so close to 8, but not quite?
#2
11-18-2007, 07:58 PM
 Styhn Senior Member Join Date: Aug 2007 Location: Netherlands Posts: 157
Re: Maths: why does 987654321 / 123456789 = 8.000000073

Uhm.. Because 123456789 * 8 is almost equal to 987654321? Not trying to sound smug but that's all there is to it I think [img]/images/graemlins/smile.gif[/img]
#3
11-18-2007, 08:01 PM
 felson Senior Member Join Date: Jan 2003 Posts: 2,177
Re: Maths: why does 987654321 / 123456789 = 8.000000073

#4
11-18-2007, 08:10 PM
 felson Senior Member Join Date: Jan 2003 Posts: 2,177
Re: Maths: why does 987654321 / 123456789 = 8.000000073

eh, i'll explain a little. if you compare successive lines in the picture, you can see what is happening. it's a consequence of the fact that eight is two less than ten, the base of the decimal system. you would get a similar pattern with 6 in octal, or 14 in hexadecimal.
#5
11-18-2007, 09:39 PM
 thylacine Senior Member Join Date: Jul 2003 Posts: 1,175
Re: Maths: why does 987654321 / 123456789 = 8.000000073

[ QUOTE ]
i have spent many time at work typing into my calculator stuff like this. anyone know why if you do 987654321 divided by 123456789 it comes to such an eerie number, so close to 8, but not quite?

[/ QUOTE ]

Consider 10/81 and 80/81 in decimal.

Also consider 1/9 in decimal, then square it.
#6
11-18-2007, 10:54 PM
 eviljeff Senior Member Join Date: Jan 2005 Location: couching Posts: 5,304
Re: Maths: why does 987654321 / 123456789 = 8.000000073

#7
11-18-2007, 11:57 PM
 mbillie1 Senior Member Join Date: Dec 2006 Location: crazytown Posts: 6,665
Re: Maths: why does 987654321 / 123456789 = 8.000000073

because numbers are rigged, for more evidence see: fulltiltpoker.com
#8
11-19-2007, 12:35 AM
 vetiver Senior Member Join Date: Jul 2007 Posts: 212
Re: Maths: why does 987654321 / 123456789 = 8.000000073

[ QUOTE ]
because numbers are rigged, for more evidence see: fulltiltpoker.com

[/ QUOTE ]

Why are people trying to explain this with hexadecimals when this quote explains it entirely?
#9
11-19-2007, 03:39 AM
 David Sklansky Senior Member Join Date: Aug 2002 Posts: 5,092
Re: Maths: why does 987654321 / 123456789 = 8.000000073

I'd rather someone tell my why cubes add up to squares. Using geomety, not algebra.
#10
11-19-2007, 05:07 AM
 mrick Senior Member Join Date: Apr 2006 Posts: 159
NUMBER OF THE BEAST

I have worse news, sir. Try adding the numbers in ROULETTE.

1+2+3+4+...+35+36

Scary.

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