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From: aymanmmmm on 2 May 2010 22:59
Hello,

Can anyone tell me why the results from the following two expressions are different?

///////////////////////////////////////////////////////////
clc
clear

syms x

>> int(dirac(x-1)*x,-inf,inf) + int(dirac(x-3)*x,-inf,inf)

ans =

4

>> int((dirac(x-1) + dirac(x-3))*x,-inf,inf)

ans =

0
///////////////////////////////////////////////////////////


Thanks
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