Re: Re: Some bugs in Mathematica
- To: mathgroup at smc.vnet.net
- Subject: [mg59708] Re: [mg59680] Re: Some bugs in Mathematica
- From: Curtis Osterhoudt <gardyloo at mail.wsu.edu>
- Date: Thu, 18 Aug 2005 00:16:42 -0400 (EDT)
- References: <dds9e5$91q$1@smc.vnet.net> <200508170800.EAA24847@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
This is my final posting on this matter, as I feel such postings are
getting nowhere and quite likely annoying (almost) everyone.
Abramowitz and Stegun has this integral. So does Mathematica.
Mathematica does NOT return the result for (b^2/a^2) >1 because it's not
evaluateable UNLESS you enter the requisite assumptions (also in
Abramowitz and Stegun. If you DO enter such assumptions, the correct
answer is returned.
Alex wrote:
>Here is another proof that either Mathematica doesn't have tables or
>has a very inadequate one. Consider an example
>
>Integrate[BesselJ[1, a x] Sin[b x], {x, 0, \[Infinity]}]
>
>Mathematica gives only one-sided result, b/a < 1 while in any table of
>integrals, the result for b/a > 1 is well known. So, whatever is the
>case, Mathematica was designed in a sloppy manner.
>
>
- References:
- Re: Some bugs in Mathematica
- From: "Alex" <akhmel@hotmail.com>
- Re: Some bugs in Mathematica