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For e.g. any range of number 0 - n

0 1 2 3 4 5 6

to:

0 2 4 6 4 2 0

Is there a name for this kind of formula or calculation?

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  • $\begingroup$ Would you clarify the mapping? $\endgroup$
    – Charles
    Commented Sep 2, 2011 at 17:58
  • $\begingroup$ Sorry Charles, I do not know the mapping too, that's what I want to find out as well. $\endgroup$
    – yzyzyz
    Commented Sep 2, 2011 at 18:04

1 Answer 1

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The tent map. In your case it'd be scaled to $f(x) = 2 \min(x, 6-x)$.

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