exponentials to sines and cosines
- To: mathgroup at smc.vnet.net
- Subject: [mg42603] exponentials to sines and cosines
- From: "Will Self" <wself at msubillings.edu>
- Date: Fri, 18 Jul 2003 05:24:57 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
1. How do I get Mathematica to rewrite (-1)^(1/3) in standard rectangular
form?
2. The following function was returned by Mathematica as the solution of a
differential equation. This function is real. How do I get Mathematica to
write it in terms of Sines and Cosines?
f[x_]=(1 + E^(x + (-1)^(1/3)*x) + E^((-1)^(1/3)*x + (-1)^(2/3)*x))/
E^((-1)^(1/3)*x)
Thanks.