This is driving me crazy (not anymore!)

New001 · #1 09-02-2005, 11:20 PM

Mind Probe (SFW)

??? What the hell is this? How is it doing it?

There has to be some easy explanation, but it's worked every single time against me.

Alobar · #2 09-02-2005, 11:22 PM

yeah, math is magical stuff

kurosh · #3 09-02-2005, 11:23 PM

The answer is always going to be a certain set of numbers (9, 18, 27, 36, 45, 54, 63, 72, 81) and those are all the same letter. The letters are randomized after every time you do it.

New001 · #4 09-02-2005, 11:23 PM

Then explain it? [img]/images/graemlins/frown.gif[/img] I feel really dumb not seeing how it's getting done.

mythrilfox · #5 09-02-2005, 11:23 PM

Only certain combinations of numbers can come out of those operations, namely all powers of 9. They just change the letters to correspond to all the powers of 9.

New001 · #6 09-02-2005, 11:24 PM

Bah. Those bastards. Thanks.

StevieG · #7 09-02-2005, 11:38 PM

a two digit number xy is really 10x + y
then you subtract x and y
10x + y - x - y = 9x

your answer will always be a multiple of 9 (0,9,18...81)

each time the board loads, the symbols are assigned randomly, but all of the multiples of 9 up to 81 get the same symbol