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Re: plot and graphs


From: Doug Stewart
Subject: Re: plot and graphs
Date: Mon, 3 Sep 2012 08:12:12 -0400



On Mon, Sep 3, 2012 at 7:59 AM, Mahvish Nazir <address@hidden> wrote:


On Mon, Sep 3, 2012 at 12:38 PM, Andy Buckle <address@hidden> wrote:
On 3 September 2012 12:09, Mahvish Nazir <address@hidden> wrote:
> Can we plot the integrals using octave. I know we can plot functions but can
> we plot the integral of the function? please help

Why not?

>x=0:.1:1;
>y=x;
>plot(x,y)
>hold on
>q=cumtrapz(x,y);
>plot(x,q)
>plot(x,x^2/2,'x')


--
/* andy buckle */

Thanks Andy!
What if we have a function say (cos(t^2))^2*exp(i*t) and we want to plot its integral over the limits -5 to 5? how do we do that?

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What is i in your question???

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