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bug#4031: calc simplification problem


From: Jay Belanger
Subject: bug#4031: calc simplification problem
Date: Tue, 04 Aug 2009 19:44:52 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux)

Colin Williams <address@hidden> 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





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