
Re: Help with creating a FORMULA. (no abs value)
Posted:
Nov 18, 2013 5:51 AM


"quasi" <quasi@null.set> wrote: > > The function f defined on the set of nonnegative integers > by the formula > > f(x) = ((x1)*(((2*x1)/abs(2*x1))+1)/2)+1 >
quasi,
Thanks, that's awesome . I dunno how you whipped that out so fast, but I won't ask. 8)
Here's a tougher example:
Suppose I have this data:
X Y   0 1 1 1 2 1 3 1 . . N N
(Assume X is an integer >= zero)
Is there a formula for this set of nonnegative integers that does NOT use the absolute value function? I thought maybe an alternating series would help here, but I can't think of anything.
Any ideas?

