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Re: Finding the real part of a symbolic complex expression

• To: mathgroup at smc.vnet.net
• Subject: [mg126588] Re: Finding the real part of a symbolic complex expression
• From: DC <b.gatessucks at gmail.com>
• Date: Mon, 21 May 2012 05:58:37 -0400 (EDT)
• Delivered-to: l-mathgroup@mail-archive0.wolfram.com
• References: <jpa3ea$468$1@smc.vnet.net>

This works for instance :

Simplify[Re[(a + I b) (c + I d) // Expand], Assumptions -> Element[{a, b, c, d}, Reals]]