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#176 Factored Polynomials aren't differentiated correctly  ← ↑ →  #178 Linear Agebra problem

#177 expand (cos (2*x))
  
last edited 16 years ago by kratt6

Edit detail for #177 expand (cos (2*x)) revision 2 of 2
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Editor: kratt6
Time: 2007/12/28 14:43:40 GMT-8
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added:

From kratt6 Fri Dec 28 14:43:40 -0800 2007
From: kratt6
Date: Fri, 28 Dec 2007 14:43:40 -0800
Subject: 
Message-ID: <20071228144340-0800@axiom-wiki.newsynthesis.org>

Category: Axiom Mathematics => Axiom Library 
Severity: normal => wishlist

Submitted by : (unknown) at: 2007-11-17T22:03:02-08:00 (17 years ago)
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expand (cos (x+y)) and expand (cos (x+y+z)) are right.

Is it possible to expand cos (2x) = 2cos(x)^2-1 or 1 - 2*sin(x)^2

... --kratt6, Fri, 28 Dec 2007 14:43:40 -0800 reply
Category: Axiom Mathematics => Axiom Library Severity: normal => wishlist