Are there any examples of functions that react to themselves?

[alvin51015]

Hi. Are there any examples of functions that react to themselves? If so, how are they expressed algebraically? Any simple example will be extremely enlightening to me. Thanks.

 

[SteamKing]

What do you mean by "functions which react to themselves"? That's a pretty vague description.

 

[alvin51015]

I was just throwing out an idea to see if the work of Dean Radin had permeated the regular body of knowledge.
I would say that my vagueness lends itself to the fact that I haven't figured anything out yet.

 

[rcgldr]

One type of example, would be differential equations where acceleration is based on position. For example a sine or cosine wave would be $\ddot x = -x [/i]. A common real world example would be the elliptical orbits of a two body system.<br /> <br /> I doubt these are what you're looking for, but they are functions that react to themselves (the acceleration eventually results in new position(s), and the new position(s) affect acceleration).$

 

[Number Nine]

I was just throwing out an idea to see if the work of Dean Radin had permeated the regular body of knowledge.

The parapsychologist crank, Dean Radin?

 

[Evo]

Exactly, let's not bring up crackpots here since it's against our rules to discuss them.