?, exponentiation, multiplication, addition, ?

[Loren Booda]

What simple operations, if any, precede or succeed the series ". . . exponentiation, multiplication, addition. . ."?

 

[Moo Of Doom]

..., hexation, pentation, tetration, exponentiation, multiplication, addition, ...

Maybe succession is a good candidate for the next operation in the sequence. I don't think there's much after that, though.

 

[chroot]

Are you trying to remember PEMDAS?

- Warren

 

[Loren Booda]

chroot,

More like: multiplication represents repeated additions, and exponentiation represents repeated multiplications, etc. (Thanks for the PEMDAS blast to my algebraic past, though.)

 

[Moo Of Doom]

More like: multiplication represents repeated additions, and exponentiation represents repeated multiplications, etc.

Yep, that's the list I gave you.

Tetration (\uparrow\uparrow) is repeated exponentiation, right associated:

a\uparrow\uparrow b = a^{a^{...^{a^a}}}

where there are b a's on the left side.

2\uparrow\uparrow 2 = 2^2 = 4
2\uparrow\uparrow 3 = 2^{2^2} = 2^4 = 16
2\uparrow\uparrow 4 = 2^{2^{2^2}} = 2^{16} = 65536

Pentation (\uparrow\uparrow\uparrow) is repeated tetration, also right associated, etc.

Succession is adding 1, so you might say that adding a and b is like adding 1 to a, b times.

EDIT: I use Knuth uparrow notation for the higher operators. This is not strictly speaking a universally agreed upon thing, so you might have to explain it to pretty much anyone you show it to.

 

[Loren Booda]

Moo,

That's what I sought. "Succession" as you define it seems reasonable to me. My guess is that the next step involves fractals.