*Jas*
Main Question or Discussion Point
Arithmetic tables...?!?
Any help would be v much appreciated!
Any help would be v much appreciated!
Attachments

29.4 KB Views: 276
What if x is greater then 6 though?The tables work like ordinary multiplication tables  choose the row & column of the numbers you're multiplying, then their intersection has the product.
Hint on the questions: the squares are on the diagonal of the multiplication table.
How can x be greater than 6?What if x is greater then 6 though?
x^2=3+n*7
Aside from trying every possible value of n I'm not sure how to prove n can't be an integer.
Has math changed so much since I was a boy???The tables work like ordinary multiplication tables  choose the row & column of the numbers you're multiplying, then their intersection has the product.
Hint on the questions: the squares are on the diagonal of the multiplication table.
Yes. The subscript on the Z means it's modulo 7 arithmetic.Has math changed so much since I was a boy???
Since when does 6+6 = 5?
Since when does 6x6 = 1?
It looks like there's some sort of modulo going on.