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View Full Version : I'm an idiot, someone tell me how this works....


djj6835
07-26-2005, 01:38 PM
I'm completley baffled.

I've tried it 8 times now and it has never been wrong.
Shaman (http://www.ellusionist.com/magic_tricks_online/Magic_Tricks_theShaman.htm)

Shajen
07-26-2005, 01:40 PM
9 is key.

kgrad5
07-26-2005, 01:40 PM
notice how 9,18,27,36,45,54,63,72,81,90 are all the same symbols.. and how everytime you do it you choose one of those?

Sightless
07-26-2005, 01:41 PM
[ QUOTE ]
I'm completley baffled.

I've tried it 8 times now and it has never been wrong.
Shaman (http://www.ellusionist.com/magic_tricks_online/Magic_Tricks_theShaman.htm)

[/ QUOTE ]

which one? in teh first one the symbols switch

the second one is too confusing

djj6835
07-26-2005, 01:41 PM
nm ic now

djj6835
07-26-2005, 01:42 PM
[ QUOTE ]
notice how 9,18,27,36,45,54,63,72,81,90 are all the same symbols.. and how everytime you do it you choose one of those?


[/ QUOTE ]

yeah i didnt notice that the symbols were switching around...
told you i was an idiot

ihardlyknowher
07-26-2005, 01:43 PM
Your number is 10x+y, where x and y are integers (i.e. x and y are the two digits).

10x+y-(x+y)=9x (where x is an integer).

So the final number is a multiple of 9.

All multiples of 9 have the same symbol.

jason_t
07-26-2005, 01:44 PM
In experiment #1, even though the chart changes from each instantiation of the experiment, it is set up to always produce the same answer. I could predict the symbol you ended up with too. The key mathematically is that if a_0a_1 is an integer between 0 and 99 then a_0a_1 - (a_0 + a_1) has a very small range and all of the numbers in that range always have the same symbol assigned to them. In fact, if you write the integer more precisely as 10a + b you'll see that the range is 10a + b - (a+b) = 9a and the numbers 9, 18,... have the same symbol assigned to them. The next time you do the experiment, pick multiple numbers and look up their symbol before clicking on the sphere and you'll see they always have the same symbol assigned to them.

Experiment #2 operates similarly; I'll leave it to you to figure it out.

Homer
07-26-2005, 01:44 PM
[ QUOTE ]
I'm completley baffled.

I've tried it 8 times now and it has never been wrong.
Shaman (http://www.ellusionist.com/magic_tricks_online/Magic_Tricks_theShaman.htm)

[/ QUOTE ]

10x + y - (x + y) = 9x

The answer is always a multiple of 9. Multiples of 9 all have the same symbol.

kgrad5
07-26-2005, 01:49 PM
i must be retarted but hte second trick hasnt worked for me yet.. it keeps not getting my card.. i must be doing it wrong, i chose the number 5 and its never once got my card..