[TI-M] Re: Can TI-89 do this math?


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[TI-M] Re: Can TI-89 do this math?




And:

integrate(e^(s*t)*t, t, 0, infinity)|s<0 = 1/(s^2)

--Mike

----- Original Message ----- 
From: "Scott Noveck" <noveck@pluto.njcc.com>
To: <ti-math@lists.ticalc.org>
Sent: Wednesday, August 21, 2002 2:39 PM
Subject: [TI-M] Re: Can TI-89 do this math?


> 
> > Does it work when you put s<0 ?  I think that is what was intended.
> 
> What I meant to type was actually s>0 returned infinity (after seeing you
> expected "1/s^2 if Re(s)>0, else undef").  But I think this is what you
> want:
> 
>     integrate(e^(s*t), t, 0, infinity)|s<0    =    -1/s
> 
> -Scott
> 



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