Toying with the Borel summation to calculate tetration

[mike3]

To use it, try setting tetpoly with an initial guess first, e.g. tetpoly = 1 or tetpoly = 1 + 1.09*x. Then apply tetpoly = iternorm(tetpoly, A, order) (order is the order of the Borel summation.) some times to improve the accuracy. You can use nnormiters to do a batch of normalized iterations.

I got error "inegame: incorrect... in gtofp." and I don't know how do I do this code because iternorm(p, ubound, order) is different to iternorm(tetpoly, A, order).
therefore please you do!

p = polynomial to apply to
ubound = variable called "A" in discussion
order = variable called "r" in discussion

I'm not sure what you tried to put in there, it should have worked. Did you try something like

Code:

tetpoly = 1
tetpoly = iternorm(tetpoly, 20, 2)

(repeat the last one as many times as you want)

(that would be for A = 20, r = 2)

after loading it?