Re: Integration question
- To: mathgroup at smc.vnet.net
- Subject: [mg21026] Re: [mg20966] Integration question
- From: BobHanlon at aol.com
- Date: Thu, 2 Dec 1999 21:41:37 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
In Mathematica 4 it works
Integrate[Exp[x - a], x]
E^(-a + x)
Integrate[Exp[x - a], {x, -Infinity, a}]
1
Bob Hanlon
In a message dated 12/1/1999 3:29:19 AM, birdy00 at bu.edu writes:
>Please try the following simple tests:
>
>
> Integrate[Exp[x-a],x]
>
>then,
>
> Integrate[Exp[x-a],{x,-Infinity,a}]
>
>I get the following solution (with Mathematica 3.01)
>
> If[a<0,1,...]
>
>Is this the intended solution for this integral? A simple calculation
>shows that this integral will evaluate to 1 for any a > 0 !
>