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Question: Collecting

Question:Collecting

smhoseini 98 Maple
August 09 2008
0

Hi

I am seeking a generalized collect command in Maple to collect a expresion W

W:=mu[1]*mu[3]^3*sin(mu[1]*Pi)*cos(mu[2]*Pi)*sin(mu[3]*Pi)*cos(mu[4]*Pi)+mu[4]^3*mu[3]*cos(mu[1]*Pi)*cos(mu[2]*Pi)*sin(mu[3]*Pi)*sin(mu[4]*Pi)-mu[3]^3*mu[2]*cos(mu[1]*Pi)*sin(mu[2]*Pi)*sin(mu[3]*Pi)*cos(mu[4]*Pi)-mu[4]^3*mu[2]*cos(mu[1]*Pi)*sin(mu[2]*Pi)*cos(mu[3]*Pi)*sin(mu[4]*Pi);  

to two different expresions W1 and W2 as

W1:=mu[3]*cos(mu[2]*Pi)*sin(mu[3]*Pi)-cos(mu[3]*Pi)*sin(mu[2]*Pi)*mu[2];

W2:=mu[1]*sin(mu[1]*Pi)*cos(mu[2]*Pi)-sin(mu[2]*Pi)*cos(mu[1]*Pi)*mu[2];

where

W=mu[4]^3*cos(mu[1]*Pi)*sin(mu[4]*Pi)*W1+mu[3]^3*sin(mu[3]*Pi)*cos(mu[4]*Pi)*W2;

 Thanks in advance

and best regards

Sayed
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