Re: laplace transform

[Doug Stewart]

Tatsuro MATSUOKA wrote:
> Hello
>
> Do you need the laplace transform for the control theory?
> Sorry I do not have a knowledge about it.
>
> My usages of octave are a ODE solver and solving eigen value problems wave propagation problem. 
>
> If you would like to use control theory set, please see the control theory in 
> the octave manual.
>
> http://www.gnu.org/software/octave/doc/interpreter/
>
> That's all I can reply now.
>
> Excuse me my ignorance.
>
> I forwarded your message to address@hidden
> Someone might help you. 
>
>
> Regards  
>
> Tatsuro 
>
>
> =============Dieter Jurzitza wrote
> Dear Matsuoka San,
> first of all: good morning! I saw postings of you on the octave-help mailing 
> list, so you might probably know: is there a way to calculate laplace 
> transforms with octave? Do you know about any tool set supporting this yet? I 
> only saw tools for matlab so far, but probably you know about.
> I have complex functions of 5th order and would like to compute the step 
> response.
> Thank you very much,
>
>
>   
I have been working on an Inverse Laplace transform program

see
http://dougs.homeip.net/qtoctave/ilt.m


after I do some more testing and clean it up I will offer it to Octave
Doug Stewart

PS If you try it let me know if you have problems.