0.99999999....... (user search)
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  0.99999999....... (search mode)
Pages: [1]
Poll
Question: Does it equal 1?
#1
Yes
 
#2
No
 
Show Pie Chart
Partisan results

Total Voters: 55

Author Topic: 0.99999999.......  (Read 20586 times)
Swing low, sweet chariot. Comin' for to carry me home.
jmfcst
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Posts: 18,212
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« on: November 09, 2009, 11:15:43 PM »

Yes. People who say no are mostly uneducateds who ignore the math involved and just argue it doesn't "feel right". The math involved is pretty straightforward.

I see you have been peeking in my son's 6th grade math book.
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Swing low, sweet chariot. Comin' for to carry me home.
jmfcst
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Posts: 18,212
United States


« Reply #1 on: November 09, 2009, 11:55:34 PM »

Yes. People who say no are mostly uneducateds who ignore the math involved and just argue it doesn't "feel right". The math involved is pretty straightforward.

also, in the real world of business (e.g. floating point computations), attempting to apply simple rules of algebra will lead to the wrong answer.  Example:

x(a+b) = xa + xb in your classroom, but in the world of computer calculations, this does NOT hold true.  In fact, in the world floating points, it rarely holds true.
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Swing low, sweet chariot. Comin' for to carry me home.
jmfcst
Atlas Icon
*****
Posts: 18,212
United States


« Reply #2 on: November 10, 2009, 09:30:50 AM »

Yes. People who say no are mostly uneducateds who ignore the math involved and just argue it doesn't "feel right". The math involved is pretty straightforward.

also, in the real world of business (e.g. floating point computations), attempting to apply simple rules of algebra will lead to the wrong answer.  Example:

x(a+b) = xa + xb in your classroom, but in the world of computer calculations, this does NOT hold true.  In fact, in the world floating points, it rarely holds true.

if you're interested, here is a quick overview of the why simple math principles fall apart when coded in floating point calculations:

http://www.cs.fsu.edu/~engelen/courses/HPC-adv/FP.pdf

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