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Amazing Math Trick !!!

Atran's Avatar
Needs Regular Fix
  
Join Date: May 2007
Location: Sweden
Posts: 323
#1: Jun 10 '07
Hello, you can see an "amazing math trick" on video.
Just enter this link:
http://www.metacafe.com/watch/308492/amazing_math_trick/



kestrel's Avatar
Moderator
  
Join Date: Jul 2006
Location: California!!!
Posts: 898
#2: Jun 10 '07

re: Amazing Math Trick !!!

Quote:

Originally Posted by Atran

Hello, you can see an "amazing math trick" on video.
Just enter this link:
http://www.metacafe.com/watch/308492/amazing_math_trick/

that seems more complicated than
Expand|Select|Wrap|Line Numbers
  1.  96
  2. x98
  3. ------
  4. 9408
  5.  
at least for me...
pbmods's Avatar
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Join Date: Apr 2007
Location: Texas
Posts: 5,435
#3: Jun 10 '07

re: Amazing Math Trick !!!

Interesting. Yes, yes. Interesting.
JosAH's Avatar
Expert
  
Join Date: Mar 2007
Posts: 10,608
#4: Jun 10 '07

re: Amazing Math Trick !!!

Quote:

Originally Posted by pbmods

Interesting. Yes, yes. Interesting.

I don't find it very interesting; it all boils down to, say, (100+x)*(100+y) being
equal to 10,000 + 100*(x+y) + (x*y). For small values of x and y (whether
positive or negative) you get the clue behind that 'trick'.

kind regards,

Jos
pbmods's Avatar
Site Moderator
  
Join Date: Apr 2007
Location: Texas
Posts: 5,435
#5: Jun 11 '07

re: Amazing Math Trick !!!

Totally off-topic. Here we go.

Ooh, hey. Nice status, JosAH. Is that new?
JosAH's Avatar
Expert
  
Join Date: Mar 2007
Posts: 10,608
#6: Jun 13 '07

re: Amazing Math Trick !!!

Quote:

Originally Posted by pbmods

Totally off-topic. Here we go.

Ooh, hey. Nice status, JosAH. Is that new?

Yup, I write a few articles myself for the Java Articles section and try to help
and streamline a bit with the other articles in the Editor's Corner. Banfa is the
boss of it all.

kind regards,

Jos
DeMan's Avatar
Lives Here
  
Join Date: Nov 2006
Location: Adelaide, SA
Posts: 1,748
#7: Jun 14 '07

re: Amazing Math Trick !!!

Quote:

Originally Posted by Atran

Hello, you can see an "amazing math trick" on video.
Just enter this link:
http://www.metacafe.com/watch/308492/amazing_math_trick/

They actually showed this (locally) on TV a couple of months ago.....
Apparently it is becoming widely used in schools (in South Aust)
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