Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2007
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2007

[Date Index] [Thread Index] [Author Index]

Search the Archive

bug in Integrate

  • To: mathgroup at smc.vnet.net
  • Subject: [mg74756] bug in Integrate
  • From: "dimitris" <dimmechan at yahoo.com>
  • Date: Wed, 4 Apr 2007 04:01:43 -0400 (EDT)

The following integral is evaluated wrong by Mathematica

f = HoldForm[Integrate[x*BesselJ[0, x]*Cos[x], {x, 0, Infinity}]]

ReleaseHold[f]
0

The integral is divergent.

The same holds true for the following integral

g = HoldForm[Integrate[x*BesselJ[0, x]*Sin[x], {x, 0, Infinity}]]

ReleaseHold[g]
Integrate::gener: Unable to check convergence.
0

but this time we get a warning message that indicates that the result
might be wrong; as it is.



  • Prev by Date: Re: Depurating tool
  • Next by Date: Re: ftp from mathematica code
  • Previous by thread: Re: Expansion symbolic
  • Next by thread: Re: bug in Integrate