Re: Mathematica 6 review [first impressions]

*To*: mathgroup at smc.vnet.net*Subject*: [mg76384] Re: [mg76372] Mathematica 6 review [first impressions]*From*: Andrzej Kozlowski <akoz at mimuw.edu.pl>*Date*: Mon, 21 May 2007 05:56:39 -0400 (EDT)*References*: <200705200640.CAA06469@smc.vnet.net> <44A98897-08F0-45A1-B00C-549D188B92DF@mimuw.edu.pl>

In I made a mistake in example 2. It does illustrate my point but being disconnected it is rather trivial from the point of view of topology). A better one is this: ContourPlot3D[((Sqrt[x^2 + y^2] - 2)^2 + z^2 - 0.3) ((Sqrt[(x - 6)^2 + (y + 6)^2] - 2)^2 + z^2 - 0.3) ((Sqrt[(x + 6)^2 + (y + 6)^2] - 2)^2 + z^2 - 0.3) - 3000, {x, -3 - 6, 3 + 6}, {y, -3 - 6, 3 + 6}, {z, -3, 3}, Contours -> {0}, Mesh -> None, Axes -> False, ContourStyle -> Red, Boxed -> False] Its a connected real algebraic surface of genus 3, and the fact that Mathematica can create it at all, and that one can manipulate it i real time is pretty impressive. ( However, in terms of performance and accuracy it is still well behind Jens' MathGl3d ). Andrzej Kozlowski On 20 May 2007, at 17:16, Andrzej Kozlowski wrote: > *This message was transferred with a trial version of CommuniGate > (tm) Pro* > Its really strange but you seem to have missed the most obvious and > very noticeable thing: the completelynew graphic engine. Jus tto > illustrate it: > > 1. Make simple plot: > > Plot[Sin[x], {x, -2 Pi, 2 Pi}] > > Click on the graphic to select it. Now doble click on the graph of > of the function. You can then drag the grtaph around with the > mouse. triple click on the graph. You will see individual points > that you can now edit to change the shape of the curve. Look under > the Graphics menu. You will find a set of drawing tools that you > can use to edit the graphic further. > > 2. Try this: > > ContourPlot3D[((Sqrt[x^2 + y^2] - 1)^2 + z^2 - > 0.2) ((Sqrt[(x - 2.5)^2 + (y - 2.5)^2] - 1)^2 + z^2 - > 0.2) ((Sqrt[(x - 5)^2 + (y - 5)^2] - 1)^2 + z^2 - > 0.2) ((Sqrt[(x + 2.5)^2 + (y + 2.5)^2] - 1)^2 + z^2 - > 0.2) ((Sqrt[(x + 5)^2 + (y + 5)^2] - 1)^2 + z^2 - 0.2), {x, -7, > 7}, {y, -7, 7}, {z, -2, 2}, Contours -> {0}, Mesh -> None, Axes - > > False, > ContourStyle -> Green, Boxed -> False] > > This may take a bit of time, depending onthe speed of yoru computer > but... > try doing this with any previous version of Matheamtica (without > the help of Jens Kuska's MathGl3D) Not to mention the fact that > you can now rotate this thing in real time. > > And that's just a few of the most obvous (to me) new things. > > It seems to me you have missed the "raison d'etre" of Mathematica 6.0 > > Andrzej Kozlowski > > > > On 20 May 2007, at 15:40, science2003 at libero.it wrote: > >> Premise: I use Mathematica. here and then -not everyday. Symbolic >> calculus, >> matrix algebra, with plotting, etc. are mine 80% activity on >> Mathematica. >> I was curious on the hype that mounted. I look around for "first >> impression" reports. But I did not find many. So here is mine. Just >> first (partial) impressions on a Win2k. I hope someone can add >> others >> >> Installation (trial v.): It is a big one! At the end in the Wolfram >> folder there are more than 800Mb, plus I guess the files spread in >> Application data and (I hope just few of them) in the System. >> >> Interface: It did not change so much. I know that almost everyone say >> it did. But inputs needed to be inserted as usual. I would say that >> another system did change its interface (the one in Java) not >> Mathematica. >> The first thing (I guess a big one) that one notices is the >> coloring code. >> Helpful, but not amazing. Not all menus are in the same position. I >> notice that "Palettes" have gain a place of first order (it was >> before >> under "File" at least in v4.x). >> >> Palettes: There are some new. One of it about layout (Document, >> article, report, etc). But unfortunately I was unable to find the >> main >> I always used: Basic Calculations. This is a big miss! For a saltuary >> user it helped to input correctly and carry on the job, without too >> much mistakes. If it is not hidden somewhere this is certainly a >> minus >> of Mathematica 6. It was probably also in 5.2 (I do not have it): >> it is possible >> to add new palettes from your calculations. To add them it easy. I >> was unable to find how to remove them! (probably the only way is >> to go >> in the folder where they are placed and physically remove them.) >> >> Help files: You have the opportunity to see the 5 minutes >> introduction >> to Mathematica 6. But the new helper system is indeed less helpful >> of the >> revious versions of Mathematica. Several links are for online >> material. >> Tutorials refer to (at least the one I met) to a online courses >> (starting from $800!). Why they do not make tutorials online these >> days! They will expand the possible user base and sell more copies! >> Well this is a topic for next time. I notice also that the help is >> also much slower than the old version. (My CPU is just 1100Mhz). >> >> Dynamics and cursors: I look at What new and the main thing that I >> remember was sliders and dynamics. They are nice features that >> already attracted - as I see - here much attention. I do not have the >> competence to assess if they are also revolutionary. For my needs >> probably not. >> >> Under the hood: in a fist impression after a day of experience I >> cannot really assess them. I hope others can as I hope that others >> can >> tell more on "user experience", not just "expert experience" >> >> >

**References**:**Mathematica 6 review [first impressions]***From:*science2003@libero.it

**Fwd: Style sheets in 6.0**

**Re: Mathematica 6 review [first impressions]**

**Mathematica 6 review [first impressions]**

**Re: Mathematica 6 review [first impressions]**