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Re: V9 !!!

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  • Subject: [mg128891] Re: V9 !!!
  • From: Murray Eisenberg <murray at math.umass.edu>
  • Date: Sun, 2 Dec 2012 05:01:01 -0500 (EST)
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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 at 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 at gmail.com]
>
> Version 9.0.0 is here...
> anybody installed it yet? Reactions, critical bugs... ???

---
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








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