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From: Jay Belanger <jay.p.belanger@gmail.com>
To: Colin Williams <lackita@gmail.com>
Cc: 4031@emacsbugs.donarmstrong.com, bug-gnu-emacs@gnu.org
Subject: bug#4031: calc simplification problem
Date: Tue, 04 Aug 2009 19:44:52 -0500	[thread overview]
Message-ID: <87d47b2inv.fsf@gmail.com> (raw)
In-Reply-To: <1b97198a0908040728u21355fccjd9e7c485958ba471@mail.gmail.com> (Colin Williams's message of "Tue, 4 Aug 2009 10:28:58 -0400")


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





  reply	other threads:[~2009-08-05  0:44 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <87k4ykmrvh.fsf@gmail.com>
2009-08-04 14:28 ` bug#4031: calc simplification problem Colin Williams
2009-08-05  0:44   ` Jay Belanger [this message]
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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