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Re: Finding the real part of a symbolic complex expression
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Cisco Lane
May 22, 2012, 5:21:24 AM5/22/12
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I think it needs to be simplified in order to get the assumptions to kick in. Also, Mathematica doesn't know to expand, so I would write:
Assuming[Element[{a, b, c, d}, Reals],Simplify[Re[Expand[(a + I b) (c + I d)]]]]
Assuming[Element[{a, b, c, d}, Reals],Simplify[Re[Expand[(a + I b) (c + I d)]]]]
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