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joe
Posts:
19
Registered:
9/24/09


Re: Transfer function (tf) with sqrt function.
Posted:
Nov 18, 2009 11:16 AM


"Aleks Dyskin" <aleks.dyskin@gmail.com> wrote in message <he14qa$5fm$1@fred.mathworks.com>... > Hi! > I have an analytic function f=sqrt(1+s) > And i want to turn it to the transfer function by the next code: > s=tf('s') > sys=sqrt(1+s) > > But Matlab says: > Undefined function or method 'sqrt' for input arguments of type 'tf' > Could somebody help me with this issue? What should I do to overcome it? > Thanks!
Hi the function Sqrt(value)= (value) power 1/2=value^1/2.... The tf need the interger value in power to make your system. I think you cann?t give up something like that ...
joe



