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Re: Odd behavior (bug?) with Exp[-x^2} and Erf

• To: mathgroup at smc.vnet.net
• Subject: [mg42949] Re: Odd behavior (bug?) with Exp[-x^2} and Erf
• From: Bill Rowe <listuser at earthlink.net>
• Date: Tue, 5 Aug 2003 02:05:01 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

On 8/4/03 at 12:45 AM, siegman at stanford.edu (AES/newspost) wrote:

> Very reluctant to claim I've found a bug in Mathematica, but the 
> following cells certainly aren't doing what I expect them to:

>     f[x_] = (Exp[-5(x + 1)^2] + Exp[-5x^2] + Exp[-5(x - 1)^2])^2
>     Plot[f[x], {x, 0, 2}, PlotRange -> {{0, 2}, {0, 2}}];
>     g[y_] = Integrate[f[x], {x, 0, y}, Assumptions -> y > 0]
>     Plot[g[y], {y, 0.001, 2}, PlotRange -> {{0, 2}, {0, 1}}];

What do you see that you don't expect?

• Follow-Ups:
  • Re: Re: Odd behavior (bug?) with Exp[-x^2} and Erf
    • From: Peter Pein <peter1963@totalise.co.uk>