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04-12-2012, 07:35 AM
Hmm, I didn't know that 
. I understand modulus in programming :P (which results in the remainder of the division). I know the congruent sign, but I don't really know why you don't use the equal sign instead, and what those -1 means, so in the end I don't understand what you were explaining, even after you writing all those examples xP . But I do notice these special numbers that do similar things when multiplied with any 0-3-6-9 numbers :P , and the relation with mod 10 seems very logical.
At first glance I thought the -1 is the power, but doesn't seem appropriate there :P . Next I think about multiplying with the number -1, but that's not the usual way to write and when I reach 1x9[sup]-1[/sup ≡ 1 mod 10, it doesn't seem to be multiplication by -1 anymore XP .
My school doesn't teach modulus xD or modulo O_o I'm not familiar with modulo, but it seems they are close or the same.
. I understand modulus in programming :P (which results in the remainder of the division). I know the congruent sign, but I don't really know why you don't use the equal sign instead, and what those -1 means, so in the end I don't understand what you were explaining, even after you writing all those examples xP . But I do notice these special numbers that do similar things when multiplied with any 0-3-6-9 numbers :P , and the relation with mod 10 seems very logical.At first glance I thought the -1 is the power, but doesn't seem appropriate there :P . Next I think about multiplying with the number -1, but that's not the usual way to write and when I reach 1x9[sup]-1[/sup ≡ 1 mod 10, it doesn't seem to be multiplication by -1 anymore XP .
My school doesn't teach modulus xD or modulo O_o I'm not familiar with modulo, but it seems they are close or the same.
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