Re: Exponential forms and substitution
- To: mathgroup at smc.vnet.net
- Subject: [mg34467] Re: Exponential forms and substitution
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Thu, 23 May 2002 03:32:05 -0400 (EDT)
- Organization: Universitaet Leipzig
- References: <acffif$rrj$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
- Sender: owner-wri-mathgroup at wolfram.com
Hi, E^(I Pi/5) != (-1)^(2/5) but E^(I 2 Pi/5) == (-1)^(2/5) Can you send us a small example ? So that we can see what forms you have ? Regards Jens Steve Gray wrote: > > For various reasons I have complex exponentials written > both as (for example) (-1)^(2/5) and the equivalent > E^(I Pi/5). How do I convert both forms into the same > form of my choice? > Also I have a variable, say g, defined as (-1)^(2/5) . In > the complex matrices I work with it is important for visual > reasons to have the symbol g itself appear when I need it, > instead of one of its numeric equivalents. Using the usual > substitution rules as I understand them does not seem to > work. > Any tips will be greatly welcomed!