Tetration extension for bases between 1 and eta
#10
Upon closer study i think i have found a formula that actually works.

\( {}^ x b = \lim_{k\to \infty} \log_b ^k({}^ k b (ln(b){}^ \infty b)^x-{}^ \infty b(ln(b){}^ \infty b)^x+{}^ \infty b) \)

Also i have noticed that this can be more generalized to say,

if \( f(x)=b^x \)
then
\( f^n(x)= \lim_{k\to \infty} \log_b ^k( Exp_b^k(x) (ln(b){}^ \infty b)^n-{}^ \infty b(ln(b){}^ \infty b)^n+{}^ \infty b) \)

numerical evidence shows this to be true.

some plots

\( {}^x sqrt2 \)
   

half iterite of \( sqrt2^x \)

   

The graph falls apart at x=4 because \( Exp_b^k(4.01) \) diverges as k goes to infinity.

thanks.

Edit: sorry for the huge pictures
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Messages In This Thread
RE: Tetration extension for bases between 1 and eta - by dantheman163 - 12/15/2009, 01:01 AM

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