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MathGroup Archive 2004

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Re: Re: Re: Newly Released Mathematica 5.1 Delivers Unmatched Performance for Handling Data

  • To: mathgroup at smc.vnet.net
  • Subject: [mg52316] Re: [mg52306] Re: [mg52274] Re: Newly Released Mathematica 5.1 Delivers Unmatched Performance for Handling Data
  • From: Yasvir Tesiram <tesiramy at omrf.ouhsc.edu>
  • Date: Mon, 22 Nov 2004 01:28:51 -0500 (EST)
  • References: <200411211223.HAA02205@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

G'day David,

Very curious. I just checked and indeed all works fine with 5.0 but Gray
isn't liked much in 5.1. Neither is Black, another color defined by
GrayLevel. Other colors defined by RGB seems to work fine though.
There probably is a good reason floating around somewhere.

Yas

On Sun, 21 Nov 2004, David Park wrote:

> Here is one thing that I hazard is a new bug. I don't actually have 5.1 so
> maybe someone can check it for me.
>
> The following works fine in 5.0.1.
>
> Needs["Graphics`Colors`"]
>
> f[x_, y_] :=
>   With[{v = Sin[x y]},
>     Which[v < 0, Gray,
>       v < 0.2, LightCoral,
>       v < 0.4, PaleGreen,
>       v < 0.6, CadetBlue,
>       v < 0.8, GeraniumLake,
>       True, UltramarineViolet
>       ]]
>
> Show[Graphics[
>       {RasterArray[
>           Table[f[x, y], {x, 0, 5, 5/101}, {y, 0, 5, 5/101}], {{0, 0}, {5,
>               5}}]}],
>     AspectRatio -> Automatic,
>     Frame -> True,
>     ImageSize -> 400];
>
> If it doesn't work in 5.1, I'm sure there's a good reason.
>
> David Park
> djmp at earthlink.net
> http://home.earthlink.net/~djmp/
>
>
>
> From: Time E. Time [mailto:timetime at gmail.com]
To: mathgroup at smc.vnet.net
> To: mathgroup at smc.vnet.net
>
> New features and better algorithms are great, but does anyone know if
> they've fixed any bugs in this release?  Things like
>
> The rotated text bug on Macs where labels on the y-axis of frames are
> garbled.
>
> The instability in large eigenvalue calculations, which sometimes make
> it impossible to interrupt the kernel and other times cause the kernel
> to unexpectedly quit.
>
> The "feature" where Mathematica uses a non-standard character
> encoding, so that text in graphics is garbled when imported into some
> other programs, like Illustrator.
>
> I'm excited about cluster analysis, but I can't bring myself to fork
> over any more money to Stephen Wolfram until simple problems which
> have existed for years are fixed.
>
> -Tim
>
>
>


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