Re: Packages - trivial question

*To*: mathgroup at smc.vnet.net*Subject*: [mg125201] Re: Packages - trivial question*From*: Murray Eisenberg <murray at math.umass.edu>*Date*: Tue, 28 Feb 2012 00:46:55 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <201202271139.GAA29325@smc.vnet.net>*Reply-to*: murray at math.umass.edu

Yes, "definition space" is the basic idea -- what's sometimes called "name space" with other languages. The technical term in Mathematica is "context". Look up "context" in the Mathematica Documentation Center. And in particular see the page "tutorial/Contexts". Also the page "tutorial/ContextsAndPackages". On 2/27/12 6:39 AM, =8Aer=FDch Jakub wrote: > I'm sorry for such a trivial question, but what does mean the backapostroph behind the package name, when one wants to get package? > > For example: > << PhysicalConstants` > > I'm trying to find it in the documentation, but I'm not successfull. Is it the same symbol as it is used for NumberMarks i.e. 0.3333333333333333` for example? > > I think, that in the case of packages it means something like "definition space", because for example: > Remove["Global`*"] should remove all the symbol definitions in current session. > > But I'm still confused of the little but magic ` > > Thanks in advance for any enlightenment > > Jakub > > -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305

**References**:**Packages - trivial question***From:*Šerých Jakub <Serych@panska.cz>