Re: Integration question
- To: mathgroup at smc.vnet.net
- Subject: [mg21015] Re: [mg20966] Integration question
- From: "Tomas Garza" <tgarza at mail.internet.com.mx>
- Date: Thu, 2 Dec 1999 21:41:27 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
V Stokes [birdy00 at bu.edu] wrote: > 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 ! The following was made on Version 4: In[1]:= Clear[a, x] In[2]:= Integrate[Exp[x - a], x] Out[2]= \!\(\[ExponentialE]\^\(\(-a\) + x\)\) In[3]:= Integrate[Exp[x - a], {x, -Infinity, a}] Out[3]= 1 Tomas Garza Mexico City