Re-Gift Robin: How does it work?
Have you ever used Re-Gift Robin and wondered how it works?
First try it out (http://www.regiftable.com), then view the proof below -
The trick lies in the number 9
All of the items corresponding with a multiple of nine on the grid are the same re-gift...
Here's the simple mathematical proof:
f = first digit of the number
s = second digit of the number
= (10*f) + (1*s) - f - s
= 10 * f - f
= 9 * f
The website randomly changes the item every time, so that it seems like they're playing a Jedi mind trick on you...
But don't be fooled! ;-)
First try it out (http://www.regiftable.com), then view the proof below -
The trick lies in the number 9
All of the items corresponding with a multiple of nine on the grid are the same re-gift...
Here's the simple mathematical proof:
f = first digit of the number
s = second digit of the number
= (10*f) + (1*s) - f - s
= 10 * f - f
= 9 * f
The website randomly changes the item every time, so that it seems like they're playing a Jedi mind trick on you...
But don't be fooled! ;-)
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