GNU bug report logs - #4031
calc simplification problem

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From: help-debbugs <at> gnu.org (Emacs bug Tracking System)
To: jay.p.belanger <at> gmail.com
Subject: bug#4031: marked as done (calc simplification problem)
Date: Sat, 24 Oct 2009 21:05:05 +0000

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Your message dated Sat, 24 Oct 2009 15:58:10 -0500
with message-id <87k4ykmrvh.fsf <at> gmail.com>
and subject line Re: calc simplification problem
has caused the Emacs bug report #4031,
regarding calc simplification problem
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

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4031: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=4031
Emacs Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Colin Williams <lackita <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: calc simplification problem
Date: Tue, 4 Aug 2009 10:28:58 -0400

In calc, doing `a s' simplifies "(1 + cos(x)^2 - 1) / cos(x)" to
"cos(x)^2 sec(x)", which contradicts an example in the tutorial on
rewrite rules.

Colin

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From: Jay Belanger <jay.p.belanger <at> gmail.com>
To: 4031-done <at> debbugs.gnu.org
Cc: jay.p.belanger <at> gmail.com
Subject: Re: calc simplification problem
Date: Sat, 24 Oct 2009 15:58:10 -0500

> In calc, doing `a s' simplifies "(1 + cos(x)^2 - 1) / cos(x)" to
> "cos(x)^2 sec(x)", which contradicts an example in the tutorial on
> rewrite rules.

The simplification rules were adjusted, and the example was changed to
match the rules.

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