Re: Re: New version, new bugs
- To: mathgroup at smc.vnet.net
- Subject: [mg51780] Re: [mg42582] Re: New version, new bugs
- From: DrBob <drbob at bigfoot.com>
- Date: Mon, 1 Nov 2004 02:54:09 -0500 (EST)
- References: <200307170745.DAA22964@smc.vnet.net> <oprsgqg4q9amtwdy@smtp.cox-internet.com>
- Reply-to: drbob at bigfoot.com
- Sender: owner-wri-mathgroup at wolfram.com
This was fixed in version 5.0, but it's broken again in 5.0.1: N[Pi,20] InputForm[%] 3.1415926535897932385 3.14159265358979323846264338358737222874`20. InputForm[%, NumberMarks -> False] 3.14159265358979323846264338358737222874 We're supposed to see 20 digits in the last output, according to the Book, section 3.1.4. Bobby On Thu, 17 Jul 2003 11:23:18 -0500, Dr Bob <drbob at bigfoot.com> wrote: > In version 5: > > N[Pi,20] > InputForm@% > > 3.1415926535897932385 > > 3.141592653589793238462643383\ > 58737222874`20. > > InputForm[%,NumberMarks\[Rule]False] > > 3.1415926535897932385 > > But I agree the bug-reporting and repair process is broken. > > It needs to be much more transparent -- if what we think and feel countsfor anything. > > Bobby > > On Thu, 17 Jul 2003 03:45:03 -0400 (EDT), Ersek, Ted R<ErsekTR at navair.navy.mil> wrote: > >> In response to some reported bugs Andrzej Kozlowski wrote: >> I agree that the other bugs you mention are awful and ought to have been >> fixed long ago. Some of them at least seem pretty trivial to fix and it >> seems that the only reason why they haven't been fixed is that they were >> never recorded on a "to be done" list. I feel that something is seriously >> amiss when a reported bug that does not require a major re-write of the >> kernel is not fixed: at least the person who reported it ought to begiven >> an explanation why it has not been done. It looks to me that Wolfram's >> entire bug-reporting system needs a serious reconsideration. ------------- >> >> ------- >> The Wolfram Research process for testing and fixing bugs is badly brokenat >> Wolfram Research. For more evidence of this consider the following. The >> Mathematica Book (4th edition) section 3.1.4 gives the following on page >> 722. >> >> In[11]:=N[Pi,20] >> Out[11]= 3.1415926535897932385 >> >> In[12]:=InputForm[%] >> Out[12]//InputForm = 3.141592653589793238462643383279503`20 >> >> In[13]:= InputForm[%,NumberMarks->False] >> Out[13]//InputForm = 3.1415926535897932385 >> >> >> I am using Mathematica 4.1 under Windows 98, and I get Out[13]//InputForm= InputForm[3.141592653589793238462643383279503`20, NumberMarks -> False] >> from the last line above. >> >> >> Someone at Wolfram said this probably works on the platform that was usedto >> make The Mathematica Book. I reported this problem several months before >> version 4.0 was released, and it still wasn't fixed even in version 4.1. I >> don't know if it works in version 4.2 or 5.0, but I wouldn't bet on it. >> Shouldn't they be embarrassed that some versions of Mathematica can't do >> something that is demonstrated in The Mathematica Book? I can't believe >> fixing this would require a great deal of effort, and I find it appalling >> that they can't be bothered to fix it. >> >> Regards, >> >> Ted Ersek >> >> > > > -- DrBob at bigfoot.com www.eclecticdreams.net