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Re: behavior from Mathematica 7 to Mathematica 8

• To: mathgroup at smc.vnet.net
• Subject: [mg113984] Re: behavior from Mathematica 7 to Mathematica 8
• From: Bill Rowe <readnews at sbcglobal.net>
• Date: Sat, 20 Nov 2010 06:10:32 -0500 (EST)

On 11/19/10 at 5:10 AM, edskulsky at gmail.com (David Skulsky) wrote:

>While testing Mathematica 8 on some heritage code, I found a problem
>which a colleague traced to a behavioral change in Times[].
>Specifically, the documentation for Times[] states that "0 x
>evaluates to 0, but 0.0 x is left unchanged."  This appears to be
>true in Mathematica 7 but not in Mathematica 8 (at least not under
>Mac OS X 10.6.4).

>I have informed Wolfram about this change (bug?).

I can confirm getting 0. as the result of doing 0.0 x in version
8 but getting 0.x as the result in version 7. It seems to me the
result returned by version 8 is more consistent and version 8 is
correcting a "bug" that was present in version 7.