This integral doesn't converge. Why do you think Sage should return
what Mma does?
On Sat, Sep 20, 2008 at 11:58 PM, Nasser Abbasi <[EMAIL PROTECTED]> wrote:
>
> Hello;
> I am a sage newbie. I'd like to find out how to make Sage give me
> this same result that I get in Mathematica.
>
> This is what I typed (I do not know how to cut/paste from the VMWare
> player console to her yet, so if there is a typo it is because of
> this).
>
> f=var('f')
> assume(f>0)
> integral( e^(-I * 2 * pi * f * t), t , 0 , Infinity)
>
> The answer I get starts with
>
> limit(sin(2*pi*f*t),t, etc...etc...
>
>
> Is there a way to tell Sage to give me this answer I get from
> Mathematica?
>
> Assuming[Im[f] < 0, Integrate[Exp[(-I)*2*Pi*f*t], {t, 0, Infinity}]]
> -(I/(2*f*Pi))
>
> Thanks,
> Nasser
>
>
>
>
>
> >
>
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