Date: Dec 3, 2012 3:31 AM Author: Murray Eisenberg Subject: Re: V9 !!! The Suggestions Bar is easy to turn off via Preferences. But I think

Mathematica novices may find it useful, and even experienced users may

find it useful at times, especially when venturing into some new area of

Mathematica functionality.

The new built-in (kernel) vector analysis functions should be a boon to

folks needing them.

However, I've always had mixed feelings as Mathematica has grown to

build in more and more mathematical functions. At times this has taken

the edge off what was a valuable exercise for my undergraduate students:

defining more complicated functions -- e.g., div in vector analysis or

nullSpace in linear algebra -- that forced students to understand the

precise underlying definitions and algorithms. And it tended to take

away a sense of power and accomplishment when students could start by

defining the simplest kind of function, such as performing a single

elementary row operation, and step-by-step building ever more

complicated functions, culminating in something relatively

sophisticated, such as finding the orthogonal projection of a vector

upon the span of a given set of vectors, and even going further, such as

using the latter to find the least-squares solution to an overdetermined

linear system.

On Dec 1, 2012, at 4:37 AM, djmpark <djmpark@comcast.net> wrote:

> One thing that is nice is that if you have a six core machine you now get

> six parallel kernels!

>

> I don't know if I like the Predictive Interface very well. As many people

> know, I like to view the notebook interface as a plain piece of paper that I

> write on. With the New CellInsertionPointCell, and now the Predictive

> Interface it is gradually morphing into something that looks more like a

> palette. How many more doo-dads are they going to add? And the little

> buttons tend to interfere with other material on the page. Many will like

> these features, but if you don't like them you can disable them. The

> CellInsertionPointCell feature can be disable by an option for the notebook

> (in the Style Sheet say) CellInsertionPointCell->None. (You can get

> WolframAlpha just by typing = as the first character in a new cell.) And the

> Predictive Interface can be disabled by the "Show Suggestions Bar after last

> output" checkbox on the Preferences, Interface.

>

> The new Vector Analysis functionality is fairly nice, extending to higher

> dimensions.

>

> From: alexxx [mailto:alexxx.magni@gmail.com]

>

> Version 9.0.0 is here...

> anybody installed it yet? Reactions, critical bugs... ???

---

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