* bug#4031: calc simplification problem
@ 2009-08-04 14:28 ` Colin Williams
2009-08-05 0:44 ` Jay Belanger
2009-10-24 21:05 ` bug#4031: marked as done (calc simplification problem) Emacs bug Tracking System
0 siblings, 2 replies; 5+ messages in thread
From: Colin Williams @ 2009-08-04 14:28 UTC (permalink / raw
To: bug-gnu-emacs
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
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#4031: calc simplification problem
2009-08-04 14:28 ` bug#4031: calc simplification problem Colin Williams
@ 2009-08-05 0:44 ` Jay Belanger
2009-10-24 21:05 ` bug#4031: marked as done (calc simplification problem) Emacs bug Tracking System
1 sibling, 0 replies; 5+ messages in thread
From: Jay Belanger @ 2009-08-05 0:44 UTC (permalink / raw
To: Colin Williams; +Cc: 4031, bug-gnu-emacs
Colin Williams <lackita@gmail.com> writes:
> 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.
So it does. Calc needs to simplify expressions with secant (and
cosecant and cotangent) better. I'll be out of town for the next week;
I'll fix it as soon as I get back.
Jay
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#4031: calc simplification problem
@ 2009-10-24 19:27 Chong Yidong
2009-10-24 20:47 ` Jay Belanger
0 siblings, 1 reply; 5+ messages in thread
From: Chong Yidong @ 2009-10-24 19:27 UTC (permalink / raw
To: Jay Belanger; +Cc: 4031, Colin Williams
Jay Belanger <jay.p.belanger@gmail.com> wrote:
> > 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.
> So it does. Calc needs to simplify expressions with secant (and
> cosecant and cotangent) better. I'll be out of town for the next week;
> I'll fix it as soon as I get back.
Hi Jay,
Did you get around to fixing this? If so, this bug should be closed.
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#4031: calc simplification problem
2009-10-24 19:27 bug#4031: calc simplification problem Chong Yidong
@ 2009-10-24 20:47 ` Jay Belanger
0 siblings, 0 replies; 5+ messages in thread
From: Jay Belanger @ 2009-10-24 20:47 UTC (permalink / raw
To: Chong Yidong; +Cc: 4031, Colin Williams
Chong Yidong <cyd@stupidchicken.com> writes:
...
>> > 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.
...
> Hi Jay,
>
> Did you get around to fixing this?
Yes.
> If so, this bug should be closed.
Sorry; I'll take care of it now.
Jay
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#4031: marked as done (calc simplification problem)
2009-08-04 14:28 ` bug#4031: calc simplification problem Colin Williams
2009-08-05 0:44 ` Jay Belanger
@ 2009-10-24 21:05 ` Emacs bug Tracking System
1 sibling, 0 replies; 5+ messages in thread
From: Emacs bug Tracking System @ 2009-10-24 21:05 UTC (permalink / raw
To: jay.p.belanger
[-- Attachment #1: Type: text/plain, Size: 836 bytes --]
Your message dated Sat, 24 Oct 2009 15:58:10 -0500
with message-id <87k4ykmrvh.fsf@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.
(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@emacsbugs.donarmstrong.com
immediately.)
--
4031: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=4031
Emacs Bug Tracking System
Contact owner@emacsbugs.donarmstrong.com with problems
[-- Attachment #2: Type: message/rfc822, Size: 2995 bytes --]
From: Colin Williams <lackita@gmail.com>
To: bug-gnu-emacs@gnu.org
Subject: calc simplification problem
Date: Tue, 4 Aug 2009 10:28:58 -0400
Message-ID: <1b97198a0908040728u21355fccjd9e7c485958ba471@mail.gmail.com>
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
[-- Attachment #3: Type: message/rfc822, Size: 1618 bytes --]
From: Jay Belanger <jay.p.belanger@gmail.com>
To: 4031-done@emacsbugs.donarmstrong.com
Cc: jay.p.belanger@gmail.com
Subject: Re: calc simplification problem
Date: Sat, 24 Oct 2009 15:58:10 -0500
Message-ID: <87k4ykmrvh.fsf@gmail.com>
> 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.
^ permalink raw reply [flat|nested] 5+ messages in thread
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2009-08-04 14:28 ` bug#4031: calc simplification problem Colin Williams
2009-08-05 0:44 ` Jay Belanger
2009-10-24 21:05 ` bug#4031: marked as done (calc simplification problem) Emacs bug Tracking System
2009-10-24 19:27 bug#4031: calc simplification problem Chong Yidong
2009-10-24 20:47 ` Jay Belanger
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