Re: Definitions missing

*To*: mathgroup at smc.vnet.net*Subject*: [mg131040] Re: Definitions missing*From*: Murray Eisenberg <murray at math.umass.edu>*Date*: Wed, 5 Jun 2013 03:30:21 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*Delivered-to*: l-mathgroup@wolfram.com*Delivered-to*: mathgroup-outx@smc.vnet.net*Delivered-to*: mathgroup-newsendx@smc.vnet.net*References*: <20130604060024.165FA6A67@smc.vnet.net>

Not an unreasonable question, as I've sometimes had the same experience: why doesn't the Documentation Center just tell you the definition? I usually resort to Google search at this point, which typically gives me as the top two hits entries at Wikipedia and MathWorld. There are some situations, though, in which a given function's definition has various possible conventions, e.g., as to normalizing coefficients. It would be especially helpful there if the Mathematica documentation. On Jun 4, 2013, at 2:00 AM, Dr. Wolfgang Hintze <weh at snafu.de> wrote: > I'm sometimes missing a short path to the *definition* of a > Mathematica function. Perhaps somebody here could give me a hint. > > Example: StandardDeviation > > I'm double clicking the keyword in the notebook, press F1 and arrive > in the help browser which tells me that "StandardDeviation" is the > standard deviation. > Fine, I almost expected that. But now, how is this quantity defined? > This is a simple example, of course, but I admit that I forget > sometimes if it was the sum of the cuadratic differences or the square > root of it, was it 1/n or 1/(n-1)? > > But the same holds for all functions which frequently are defined e.g. > by power series or integrals. I personally would like to see this > definition in the help browser. --- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2838 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305

**References**:**Definitions missing***From:*"Dr. Wolfgang Hintze" <weh@snafu.de>