Just to clarify for myself:

i -th exponentiation of anything (e.g.) 2 would be:

2^i = 2*2*2*2*2............ i times = 0.76923890..+I*0.63896127...=e^(i*ln2)

i-th root of this number would be 2. (1/i=-i )

Learning, thanks.

ith exponentiation of a function is not i-th iteration of a function. See next post by administrator which puts it straight.

Ivars

i -th exponentiation of anything (e.g.) 2 would be:

2^i = 2*2*2*2*2............ i times = 0.76923890..+I*0.63896127...=e^(i*ln2)

i-th root of this number would be 2. (1/i=-i )

Learning, thanks.

ith exponentiation of a function is not i-th iteration of a function. See next post by administrator which puts it straight.

Ivars