Re: AW: AW: Integrate liefert falsches Ergebnis

["Felix E. Klee" <felix.klee@XXXXXXX.de>]

On Monday 07 April 2003 19:17, Felix E. Klee wrote:
> Ich werde wohl einen Bug-Report schreiben (hat jemand eine Ahnung an wen
> man den senden kann?).

Ich habe inzwischen eine Antwort auf meinen Report an support@XXXXXXX.uk
erhalten. Die Kommunikation habe ich unten angehängt.

Felix


KOMMUNIKATION MIT WRI:

Ladies and Gentlemen,

below you find a report of an alleged bug that I found in Mathematica.

Yours sincerely

Felix Klee


BUG REPORT:

I use Mathematica version 4.1 for Linux (November 9, 2000).

When I enter
    Integrate[Abs[Abs[b]^2 Sin[x]]^2, {x, 0, Pi}]
then Mathematica returns
     Pi * b^4 / 2 

However, the correct result is
     Pi * Abs[b]^4 / 2
This is not identical to the above result as can be seen by inserting 
e.g. b = 1+I.

The problem seems to be that Mathematica interprets "b" as a real 
valued vairable.



----------------------------------------------------------------------------

Hello,

Thank you for the email.

I agree with you thats its an error. I have reported it to our
developers and we will fix it in our future releases.

Can you please send us your licensing information in any of your
future interactions with us?

Thanks for bringing this problem to our notice and sorry for the 
inconvenience.

Sincerely,

Subhadeep Gan
Technical Support
Wolfram Research, Inc.
support@XXXXXXX.com