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Calculating
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Minor Diety  Joined: Tue Apr 01, 2003 10:23 am Posts: 3956 Location: Amsterdam 
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  CalculatingI'd never heard of this technique before, but it seems like an incredibly easy way to calculate the results of large multiplications: http://www.metacafe.com/watch/296904/easy_mental_multiplication_trick//R/ffd_201
_________________ Melchett: As private parts to the gods are we: they play with us for their sport! |
| Thu Nov 23, 2006 4:56 pm |
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Minor Diety  Joined: Fri Apr 11, 2003 2:17 pm Posts: 7721 Location: Centre of the sun
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I was watching it, but then i noticed that the second calculation was taking aaaaages. Then I looked down at the comments and someone pointed out that he was using digits no bigger than 3. Turns out to be very impractical.
_________________ "Well a very, very hevate, ah, heavy duh burtation tonight. We had a very derrist derrison, bite, let's go ahead and terrist teysond those fullabit who have the pit." - Serene Branson |
| Thu Nov 23, 2006 5:35 pm |
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Minor Diety Joined: Tue Apr 01, 2003 10:23 am Posts: 3956 Location: Amsterdam
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I just did it with 568*345. It becomes more work but not as tedious as I expected. Off course, it's less work to multiply each number and add the results, but I like connections between plain boring maths and visual representations of it.
_________________ Melchett: As private parts to the gods are we: they play with us for their sport! |
| Thu Nov 23, 2006 6:11 pm |
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Minor Diety Joined: Fri Apr 11, 2003 2:17 pm Posts: 7721 Location: Centre of the sun
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Yeah, I found that aspect interesting.
_________________ "Well a very, very hevate, ah, heavy duh burtation tonight. We had a very derrist derrison, bite, let's go ahead and terrist teysond those fullabit who have the pit." - Serene Branson |
| Thu Nov 23, 2006 11:26 pm |
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Minor Diety  Joined: Mon Mar 31, 2003 7:23 am Posts: 14892 Location: behind a good glass of Duvel
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Unsurprisingly, I don't understand the entire procedure. Well I might if I tried, but you know. I'm not used to having to think things through.
 _________________ "I find a Burger Tank in this place? I'm-a be a one-man cheeseburger apocalypse." - Coach |
| Fri Nov 24, 2006 6:53 am |
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Emperor  Joined: Wed Apr 16, 2003 1:25 am Posts: 2560
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Tried. Fine, but no thanks...
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| Fri Nov 24, 2006 7:09 am |
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