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Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: find meeting point
Replies: 11   Last Post: Oct 4, 2009 7:03 PM

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joe

Posts: 19
Registered: 9/24/09
Re: find meeting point
Posted: Oct 4, 2009 1:41 PM
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"Lin Li" <KuvertDEL@gmailDEL.comDEL> wrote in message <ha8hbe$n9s$1@fred.mathworks.com>...
> "joe " <courstelecom@yahoo.fr> wrote in message <ha80mt$9tr$1@fred.mathworks.com>...
> > Hi
> > I have to find the time (point ) where the signal (sinus) and the axis (i.e y=10)...
> >
> > thx

>
> doc polyxpoly
> You need the Mapping Toolbox
>
> Lin


Hi Lin

help for use polyxpoly, I got some error here the code :
t=0:.01:5;
> S = exp(-t/2).*sin(t*2*pi);
> S1=inline('exp(-t/2).*sin(t*2*pi)');
> Y=0.2;
> S2=inline('0.2');
> plot(t,S,t,Y,'r'),grid on;
>
> [Y1,T1]= polyxpoly(S1,S2)


thx



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