Quote:
Originally Posted by Nasher
So how does this work then?
Its too hot and its after midnight.
Nasher.

Nasher  i'm not sure if you are winding me up  but I am avoiding work so I will answer you!
The instructions are: pick a two digit number, (for the sake of argument I will use 29 to illustrate my explanation, but it will work with any two digit number (that doesn't start with a zero!)). {in my mathematical "proof" above the first digit (a) is 2, and the second digit (b) is 9. So our two digit number is 10a+b = 29}
The instructions then say to add the two digits together (in our example that is 2+9=11) and subtract them from the original number. This is the number you have to look up the symbol for in their table. {in general terms this means we have to add a+b and subtract it from 10a+b}
In our example that gives us 2911 = 18.
{In the mathematical proof that gives us our solution (which I called q) = 10a + b  (a+b), which when you rearrange the algebra gives q = 9a, and since a in an integer (it is the first digit of your two digit number) then 9a must be a multiple of 9}
If you look at the table  it "randomises" the symbols it allocates to each number so each time you play you seem to get a different number BUT 9,18,27,36,45,54,63,72,81 always have the mathcing symbols in each randomly generated table.
EDIT { actually this will work with a number starting with a zero  the answer, q, will be zero though and its not in the table they provide }