Re: Solve Equation involving Error Function
- To: mathgroup at smc.vnet.net
- Subject: [mg65199] Re: Solve Equation involving Error Function
- From: dh <dh at metrohm.ch>
- Date: Fri, 17 Mar 2006 05:45:39 -0500 (EST)
- References: <dvdih3$a3a$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi Raj,
it is not quit clear what you want. For fixed values of t1 and t2 you
get an answer from:
Solve[Erfc[x] == N[t2/t1], x]
or
InverseErfc[N[t2/t1]]
a least square solution to all values you get from:
fun[x_] := 2(Erfc[x] - 87/80)^2 + (Erfc[x] - 87/81)^2;
NMinimize[fun[x], x]
Daniel
rajanikanth at gmail.com wrote:
> hi!
>
> Could somebody tell me how to solve this equation for the value of k in
> Mathematica
>
> t2-t1*Erfc[0.0005/Sqrt[k]] ==0
>
> where t2 is a list given by {87,87,87}
> and t1 is a list given by {81,80,80}
>
> Thanks,
>
> Raj
>