Groups > comp.soft-sys.math.maple > #1178

Simplify trigonometric expressions

Newsgroups	comp.soft-sys.math.maple
Date	2015-08-14 06:00 -0700
Message-ID	<f14c65d6-4b6e-46ca-bbc9-940bb0fb3127@googlegroups.com> (permalink)
Subject	Simplify trigonometric expressions
From	Peter Luschny <peter.luschny@gmail.com>

Show all headers | View raw

How can I teach Maple to simplify these expressions?
I thought this would be peanuts for Maple 
(especially as it is peanuts for the competitor).

[1], -(2/5)*cos((2/5)*Pi)+(2/5)*cos((1/5)*Pi)+x-1/5

[2], (2/5)*cos((2/5)*Pi)-(4/5)*cos((2/5)*Pi)*x-(2/5)*cos((1/5)*Pi)+(4/5)*cos((1/5)*Pi)*x-(2/5)*x+x^2+1/5

[3], -(6/5)*cos((2/5)*Pi)*x^2+(6/5)*cos((2/5)*Pi)*x-(2/5)*cos((2/5)*Pi)+(6/5)*cos((1/5)*Pi)*x^2-(6/5)*cos((1/5)*Pi)*x+(2/5)*cos((1/5)*Pi)+(3/5)*x-(3/5)*x^2+x^3-1/5

[4], (2/5)*cos((2/5)*Pi)-(8/5)*cos((2/5)*Pi)*x^3+(12/5)*cos((2/5)*Pi)*x^2-(8/5)*cos((2/5)*Pi)*x-(2/5)*cos((1/5)*Pi)+(8/5)*cos((1/5)*Pi)*x^3-(12/5)*cos((1/5)*Pi)*x^2+(8/5)*cos((1/5)*Pi)*x-(4/5)*x+x^4+1/5-(4/5)*x^3+(6/5)*x^2

[5], (x-1)*(1+2*cos((2/5)*Pi)*x^2-2*cos((2/5)*Pi)*x^3-2*cos((2/5)*Pi)*x-2*cos((1/5)*Pi)*x^2+2*cos((1/5)*Pi)*x^3+2*cos((1/5)*Pi)*x+2*x^2+x^4)

Back to comp.soft-sys.math.maple | Previous | Next — Next in thread | Find similar

Thread

Simplify trigonometric expressions Peter Luschny <peter.luschny@gmail.com> - 2015-08-14 06:00 -0700
  Re: Simplify trigonometric expressions Axel Vogt <&noreply@axelvogt.de> - 2015-08-14 16:02 +0200
    Re: Simplify trigonometric expressions Peter Luschny <peter.luschny@gmail.com> - 2015-08-14 09:37 -0700
    Re: Simplify trigonometric expressions Peter Luschny <peter.luschny@gmail.com> - 2015-08-14 09:45 -0700
      Re: Simplify trigonometric expressions Peter Luschny <peter.luschny@gmail.com> - 2015-08-14 12:39 -0700
      Re: Simplify trigonometric expressions Axel Vogt <&noreply@axelvogt.de> - 2015-08-14 23:45 +0200
        Re: Simplify trigonometric expressions Peter Luschny <peter.luschny@gmail.com> - 2015-08-15 01:43 -0700
        Re: Simplify trigonometric expressions clicliclic@freenet.de - 2015-08-19 14:59 +0200
          Re: Simplify trigonometric expressions Peter Luschny <peter.luschny@gmail.com> - 2015-08-19 11:19 -0700
            Re: Simplify trigonometric expressions Axel Vogt <&noreply@axelvogt.de> - 2015-08-19 22:08 +0200
              Re: Simplify trigonometric expressions Peter Luschny <peter.luschny@gmail.com> - 2015-08-20 06:14 -0700
              Re: Simplify trigonometric expressions clicliclic@freenet.de - 2015-08-22 13:55 +0200

csiph-web