Re: Difficulties with Re
- To: mathgroup at smc.vnet.net
- Subject: [mg98320] Re: [mg98349] Difficulties with Re
- From: "David Park" <djmpark at comcast.net>
- Date: Wed, 8 Apr 2009 02:42:14 -0400 (EDT)
- References: <8797377.1239009212704.JavaMail.root@n11>
Why don't you use ComplexExpand? ComplexExpand[Re[Exp[(x + I y)^2]]] E^(x^2 - y^2) Cos[2 x y] David Park djmpark at comcast.net http://home.comcast.net/~djmpark/ From: Aaron Fude [mailto:aaronfude at gmail.com] Hi, Of the following two expressions, the first "works", while the second doesn't. How does one make it work? Assuming[x > 0 && y > 0, Re[Exp[x + I y]] // Simplify] Assuming[x > 0 && y > 0, Re[Exp[(x + I y)^2]] // Simplify] Many thanks in advance, Aaron