Re: FindRoots?

*To*: mathgroup at smc.vnet.net*Subject*: [mg112245] Re: FindRoots?*From*: Andrzej Kozlowski <akozlowski at gmail.com>*Date*: Mon, 6 Sep 2010 04:42:15 -0400 (EDT)*References*: <201009031010.GAA26297@smc.vnet.net> <DA40379B-B509-4C55-B575-071F91F1021A@gmail.com> <CBE6A14D-39E3-4A2C-AEA3-ACAD9CEDFE7E@uniud.it>

On 5 Sep 2010, at 20:10, Gianluca Gorni wrote: > > On 03/set/2010, at 18.57, Andrzej Kozlowski wrote: > >> >> On 3 Sep 2010, at 12:10, Gianluca Gorni wrote: >> >>> >>> Reduce[2 x + Log[-((-1 + 2 x)/(-1 + 2 x^2))] ==== 0 && -2 < >>> x < -1/Sqrt[2], x, Reals] >>> False >> >> You seem to be using === instead of == which is a very basic error. In fact >> >> >> What are these ==== doing in your code? I don't think they could have been in it when you run it? > > Hi Andrzei! > > I had made copy-and-paste from Mathematica to Mail, > and my original message had the correct double "==". > The incorrect "====" must have crept in during > transmission, I wonder where. How is this message > showing up on your side? > > Best regards, > Gianluca Gorni > I think the problem is caused by the MathGroup mail server. It seems that when you send a post to the MathGroup with an equality sign the same post is sent to other MathGroup users with the equality sign doubled. In other words = is replaced by ==. This is very inconvenient because it means that a lot of code when pasted into Mathematica will turn into nonsense. The problem is clearly on the server side and I don't think that we can do anything about it. I don't know how long it has existed as I have not been very active in the MathGroup recently and I only noticed it because of your post. [I have checked the raw emails that came into my mailbox and I saw ======== in the mail instead of ===. My server is not doing anything to the posts as far as I can see. Note that the posts come with "=" as hex 3D and other hex codes instead of ASCII. This may be the problem with some server before it gets to me - Moderator] Andrzej

**References**:**Re: FindRoots?***From:*Gianluca Gorni <gianluca.gorni@uniud.it>