home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.math.symbolic
- Path: sparky!uunet!cs.utexas.edu!torn!watserv2.uwaterloo.ca!watserv1!mhtl1.UWaterloo.ca!mrs
- From: mrs@mhtl1.UWaterloo.ca (M. R. Sridhar)
- Subject: Re: mma big bad bug
- Message-ID: <C0GHxJ.86I@watserv1.uwaterloo.ca>
- Sender: news@watserv1.uwaterloo.ca
- Organization: University of Waterloo, Waterloo Ontario
- References: <1993Jan5.153704.2319@mail.cornell.edu> <14073@ecs.soton.ac.uk> <wmcb-060193124719@lynx.math.appstate.edu>
- Date: Wed, 6 Jan 1993 23:44:07 GMT
- Lines: 78
-
- In article <wmcb-060193124719@lynx.math.appstate.edu> wmcb@math.appstate.edu (Bill Bauldry) writes:
- >In article <14073@ecs.soton.ac.uk>, hnr@ecs.soton.ac.uk (Harvey Rutt)
- >wrote:
- >>
- >> In <1993Jan5.153704.2319@mail.cornell.edu> rz10@cornell.edu (Ray Zimmerman) writes:
- >>
- >> >In article <1993Jan5.145612.11165@Arco.COM> , jrowney@arco.com writes:
- >> >>>Here is a bizzarre mma bug. Try entering:
- >> >>>
- >> >>>Pi*Sqrt[Pi]/(2*3*Sqrt[2])
- >> >>>
- >> >>>This is very bad. If anyone knows what is going on,
- >> >>>I would like to hear from them.
- >> >>>
- >> >>>Brett
- >> >>>
- >> >>
- >> >>Quite bizarre -- Mathematica just seems to stop dead in its tracks!
- >> >>
- >> >>Mac IIfx, MMA 2.102
- >>
- >> >Hmmm, me too!
- >> >Mac IIci, MMA 2.102
- >>
- >> Me too!! MMA2.0/Windows 3.1 486PC with 16MB
- >> So its not machine dependant.
- >
- >Definitely not machine dependent! Here's a session from a Convex (courtesy
- >of tga@math.appstate)
- >
- >In[2]:= Pi*Sqrt[Pi]/(2*3*Sqrt[2])
- >
- >Interrupt> **after one minute**
- >??
- >Your options are:
- > abort (or a) to abort current calculation
- > continue (or c) to continue
- > exit (or quit) to exit Mathematica
- > inspect (or i) to enter an interactive dialog
- > show (or s) to show current operation (and then continue)
- > trace (or t) to show all operations
- >
- >Interrupt> a
- >
- >
- >WARNING: disk quota (/cardinal/edu) exceeded
- >
- >DISK LIMIT REACHED (/cardinal/edu) - WRITE FAILED
- >Bus error (core dumped)
- >
- >---
- >Just how much did it cost for this *upgrade* ?
- >
- >+=======================+===============================+
- > Bill Bauldry | wmcb@math.appstate.edu
- > Math. Sciences | wmcb@lynx.math.appstate.edu
- > Appalachian State U | BauldryWC@appstate.bitnet
- > Boone, NC 28608 | (704) 262-2355
- >+=======================+===============================+
- >When judging a mathematician you should only integrate f_+
- >and ignore f_-
- >- A Zygmund
-
- I tried out the bug and it worked fine. The problem is that if you
- do not use a period at the end of the numericals it goes into an
- infinite loop. Hope this helps.
-
-
- In[3]:= bug = Pi*Sqrt[Pi]/(2.*3.*Sqrt[2.])
-
- Out[3]= 0.1178511301977579*Pi^(3/2)
-
- In[4]:= CloseLog[]
-
-
- Sridhar
-
- e-mail: mrs@mhtl.uwaterloo.ca
-