Re: Re: problem with parsing InputForm scientific notation (eg. 3.`*^-7)
- To: mathgroup at smc.vnet.net
- Subject: [mg80783] Re: [mg80758] Re: problem with parsing InputForm scientific notation (eg. 3.`*^-7)
- From: John Fultz <jfultz at wolfram.com>
- Date: Sat, 1 Sep 2007 00:34:50 -0400 (EDT)
On Thu, 30 Aug 2007 23:52:28 -0400 (EDT), yatesd at mac.com wrote: > On Aug 26, 8:31 am, "Chris Chiasson" <ch... at chiasson.name> wrote: > >> Can anyone confirm this report? >> >> Steps to reproduce: >> 1. Enter "3.`*^-7" (without quotation marks) into an Input cell and >> evaluate it. >> 2. Go back to the Input cell, put your cursor at the beginning and >> enter "RealDigits[" >> 3. Hit the End key, type "]" and then re-evaluate the cell, which by >> now reads "RealDigits[3.`*^-7]", but don't enter that directly. >> >> I have encountered other errors where InputForm messes up the syntax >> checker, but I haven't been able to make a small reproducible example >> like this one. >> >> Version 6.0.1 on MS Windows XP SP2 >> >> --http://chris.chiasson.name/ >> > Works fine for me on a Mac. Have you tried RealDigits[3.*^-7] or > RealDigits[3`*^-7] ? Perhaps the parser is confused by having both the > period and the number mark as only one is needed. (Note that > InputForm[3`] -> 3.) > > Regards, > > Derek I can reproduce it on Mac and Windows. Thanks for the report. In this case, the problem can be repaired by typing and deleting a space somewhere in or immediately next to the number. Sincerely, John Fultz jfultz at wolfram.com User Interface Group Wolfram Research, Inc.