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#11 rajat_magic

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Posted 18 November 2010 - 03:50 PM

What about 999 *|* 909?
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#12 araver

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Posted 18 November 2010 - 03:55 PM

What about 999 *|* 909?

:D

999 *|* 909 = 1359

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#13 amateur

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Posted 18 November 2010 - 07:25 PM

This puzzle seems very hard, at least to my limited brain :unsure:.

You gotta give more clues. What is 1 *|*1 and 1 *|* 2? You can use spoilers so as not to spoil it for other members.
Thank you.
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#14 bushindo

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Posted 18 November 2010 - 08:42 PM

This puzzle seems very hard, at least to my limited brain :unsure:.

You gotta give more clues. What is 1 *|*1 and 1 *|* 2? You can use spoilers so as not to spoil it for other members.
Thank you.

Here's one solution that fits the existing 6 clues. Plenty more where this comes from =)

Spoiler for

Edited by bushindo, 18 November 2010 - 08:43 PM.

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#15 amateur

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Posted 18 November 2010 - 08:58 PM

Here's one solution that fits the existing 6 clues. Plenty more where this comes from =)

Spoiler for


Spoiler for Are you sure?


Also, can you please let me know how did you come up with such a complex formula? Do you have some standard method for these kind of problems or you are using some computer algorithm?

Edit: added spoiler.

Edited by amateur, 18 November 2010 - 09:01 PM.

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#16 bushindo

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Posted 18 November 2010 - 10:32 PM

Spoiler for Are you sure?


Also, can you please let me know how did you come up with such a complex formula? Do you have some standard method for these kind of problems or you are using some computer algorithm?

Edit: added spoiler.


Actually, the example above does work for 1 *|* 0; ( 1700 + 1309*(1) + 182*(1) + 985*(1) ) = 4176, which is equal to 2 modulo 2087. I did not notice the post that required the operation to be commutative. That can be easily fixed. This is one example that fits all 6 clues and is commutative

Spoiler for

Edited by bushindo, 18 November 2010 - 10:34 PM.

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#17 amateur

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Posted 18 November 2010 - 11:40 PM

Actually, the example above does work for 1 *|* 0...
[/spoiler]

Spoiler for Sorry my bad.


And thanks for pointing me to linear algebra. It has been ages since I touched a maths text book :blush:
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#18 superprismatic

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Posted 18 November 2010 - 11:57 PM

Please give the value of 14 *|* 14
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#19 araver

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Posted 19 November 2010 - 12:03 AM

Please give the value of 14 *|* 14


OK, first things first:
14 *|* 14 = 14

Edited by araver, 19 November 2010 - 12:03 AM.

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#20 araver

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Posted 19 November 2010 - 12:20 AM

Spoiler for


I like your thinking very much ;), but its
Spoiler for


In the original setting of the problem:
"In a future not so far way, Earth archaeologists find on a far away planet a fragment from a long lost civilization. This fragment involves an unknown operation *|*. Unlocking its secrets may lead to a breakthrough in understanding their civilization. "

Please allow me to state (and add to the OP) 2 informal assumptions I made when posting the original setting of the problem:
1) We're talking about aliens so they *might* possess different insights than humans.
2) It's a fairly used operation on their world, so one *might* expect the symmetry /simplicity / "beauty" of a human operation (e.g. addition/ multiplication, etc.)


Disclaimer: I am not implying the fact that an alien operation is bound to be hard to grasp by humans, just that in worst-case scenarios it might be difficult to translate in human-operations. This may or may not be the case here. Just sayin'.

P.S. I'm not sure how sane I am at this hour so if I don't make much sense, feel free to skip these assumptions. Other than the slightest hint possible, there's no real value / necessity in these assumptions.

EDIT: grammar :(

Edited by araver, 19 November 2010 - 12:23 AM.

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