TrigToExp of ArcTan function
- To: mathgroup at smc.vnet.net
 - Subject: [mg38547] TrigToExp of ArcTan function
 - From: Blimbaum Jerry DLPC <BlimbaumJE at ncsc.navy.mil>
 - Date: Wed, 25 Dec 2002 03:12:51 -0500 (EST)
 - Sender: owner-wri-mathgroup at wolfram.com
 
Why does Cos[ArcTan[x,y]] + I Sin[ArcTan[x,y]]//TrigToExp not give an output of Exp[I ArcTan[x,y]] ?? Instead the output is x/Sqrt[x^2+y^2] + I y/Sqrt[x^2 + y^2]........ thanks jerry blimbaum NSWC panama city, fl