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murphyma

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11Â¥2011-06-11 21:14:34
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5Â¥: Originally posted by lds588 at 2011-06-10 10:29:26
syms  a b c d e1 e2 e3
e1=a*exp(b*i)+c*exp(d*i);
e2=simple(e1'*e1)

½á¹û
e2 =
a^2 + 2*cos(d - b)*a*c + c^2

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12Â¥2013-06-10 09:52:30
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