Date: Jun 5, 2013 3:17 AM
Author: Murray Eisenberg
Subject: Re: Definitions missing
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@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@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