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Question: Convolution of two sine functions

Question:Convolution of two sine functions

baustamm1 35
November 12 2014
1

Hello,

I have a question: Why gives Maple no result for:

expr2 := sin(k*(t-tau))*sin(k*tau);
Int(simplify(expr2, symbolic), tau = 0 .. t);

It is possible with Wolfram Alpha: http://www.wolframalpha.com/input/?i=Int%28sin%28sqrt%28k%2Fm%29*%28t-tau%29%29*sin%28sqrt%28k%2Fm%29*tau%29%2C+tau+%3D+0+..+t%29

 

Thanks!
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