R help - Apr 2003 - How to calculate the x to assymptotic value and curve inflection .

Hi,

I have this non-linear function:

y=115.251 - 118.69 * exp(-0.123517*x)

I try to discovery the x value for the assyntoptic value of y and the x value 
where the behavior of curve change, the inflection point.

How to make this? Is poss?ble to make this on R?

Thanks
Ronaldo
-- 
O Flamengo e o Bangu terminaram o jogo em 0 x 0. Quem fez o gol?
A Volkswagen
--
|   // | \\   [*****************************][*******************]
|| ( ?   ? )  [Ronaldo Reis J?nior          ][PentiumIII-600     ]
|      V      [UFV/DBA-Entomologia          ][HD: 30 + 10 Gb     ]
||  /     \   [36571-000 Vi?osa - MG        ][RAM: 128 Mb        ]
|  /(.''`.)\  [Fone: 31-3899-2532           ][Video: SiS620-8Mb  ]
||/(: :'  :)\ [chrysopa at insecta.ufv.br      ][Modem: Pctel-onboar]
|/ (`. `'` ) \[ICQ#: 5692561                ][Kernel: 2.4.18     ]
||  ( `-  )   [*****************************][*******************]
||| _/   \_Powered by GNU/Debian W/Sarge D+ || Lxuser#: 205366

I think you need to refine your questions.  To me, the answers to the
questions that you asked are: "x = Inf (by definition)" and
"there
isn't an inflection point".  I don't think those are what you had
in
mind.

"Ronaldo Reis Jr." <chrysopa at insecta.ufv.br> writes:
> Hi,
> 
> I have this non-linear function:
> 
> y=115.251 - 118.69 * exp(-0.123517*x)
> 
> I try to discovery the x value for the assyntoptic value of y 
> and the x value where the behavior of curve change, the inflection
> point.
> 
> How to make this? Is poss?ble to make this on R?
> 
> Thanks
> Ronaldo