Re: What does " 1.' " mean ?

*To*: mathgroup at smc.vnet.net*Subject*: [mg66704] Re: [mg66661] What does " 1.' " mean ?*From*: "Chris Chiasson" <chris at chiasson.name>*Date*: Sat, 27 May 2006 03:52:51 -0400 (EDT)*References*: <200605260817.EAA01766@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

1 means you are looking at an exact number with a nominal value of 1 (infinite precision & accuracy) 1.` means you are looking a a machine precision number with a nominal value of 1 1.2`23 means you are looking at a number with a nominal value of 1.2 and 23 digits of precision 1.525``5 means you are looking at a number with a nominal value of 1.525 and 5 digits of accuracy Mathematica gives its definition of precision and accuracy (which are not independent) in section 3.1.4 of the Mathematica Book. On 5/26/06, Arkalen <skizzir at yahoo.com> wrote: > Warning : I am a complete newbie at using Mathematica. > > I have used NSolve to solve systems of non linear equations, and it gives > me results which look good except they contain several "1.'abc" where abc > are parameters. (that's "one period apostrophe"). > I assume it's shorthand notation for something but I can't tell what, the > Mathematica experts I might ask are all gone for a week and I can't find > it in the book. > > Anyone know what it means ? > > -- http://chris.chiasson.name/

**References**:**What does " 1.' " mean ?***From:*Arkalen <skizzir@yahoo.com>